According to the Anti-Money Laundering Specialist (the 6th edition) resources, the Egmont Group is an international network of FIUs that facilitates and prompts the exchange of information, knowledge, and cooperation among its members to combat money laundering, terrorist financing, and associated predicate offences1. The Egmont Group suggests that one of the core objectives that would lead to an effective national FIU is to have absolute trust amongst national and international stakeholders before sensitive information will be exchanged with confidence2. This means that the FIU should establish and maintain a high level of credibility, professionalism, and integrity in its operations, and ensure that the information it receives and disseminates is protected and used appropriately. The FIU should also comply with the Egmont Group's principlesand standards for information exchange, and foster a culture of mutual trust and cooperation with other FIUs and relevant authorities3.
The other three options are incorrect because:
* The FIU must operate from physically separated premises from other law enforcement agencies and government offices is not a core objective that the Egmont Group suggests for an effective national FIU. While the FIU should have operational independence and autonomy, and be free from undue influence or interference, it does not necessarily have to be physically separated from other agencies or offices. The FIU may be located within the judicial, law enforcement, administrative, or hybrid model, depending on the country's legal and institutional framework4.
* The FIU meets the Egmont Group assessment criteria is not a core objective that the Egmont Group suggests for an effective national FIU. While meeting the Egmont Group assessment criteria is a requirement for becoming and remaining a member of the Egmont Group, it is not an objective in itself. The assessment criteria are based on the FATF recommendations and the Egmont Group's own documents, and they serve as a benchmark for evaluating the FIU's compliance and effectiveness5.
* The FIU must be able to promote the value of the government's commitment to embed a corruption free society within the country is not a core objective that the Egmont Group suggests for an effective national FIU. While the FIU may contribute to the prevention and detection of corruption, as well as the recovery of illicit assets, by analyzing and sharing financial intelligence, it is not the sole or primary responsibility of the FIU to promote the value of the government's commitment to embed a corruption free society within the country. This is a broader and more complex goal that involves multiple actors and factors, such as political will, legal framework, institutional capacity, civil society, media, and international cooperation.
:
1: ACAMS, CAMS Study Guide, 6th Edition, Chapter 3, p. 64 2: Egmont Group, Egmont Group of Financial Intelligence Units Principles for Information Exchange Between Financial Intelligence Units, June 2013, 3, p. 2 3: Egmont Group, Egmont Group of Financial Intelligence Units Principles for Information Exchange Between Financial Intelligence Units, June 2013, 3, p. 3-4 4: ACAMS, CAMS Study Guide, 6th Edition, Chapter 3, p. 67 5: Egmont Group, Egmont Group of Financial Intelligence Units Support and Compliance Process, June 2013, [6], p. 3-4 : ACAMS, CAMS Study Guide, 6th Edition, Chapter 4, p. 91-92 Reference: https://www.elibrary.imf.org/view/books/069/02365-9781589063495-en/ap01.xml

According to the ACAMS CAMS Study Guide, 6th Edition, Chapter 3, Section 3.2, the financial institution should implement the following measures in order to identify and investigate money laundering activity from their clients:
Adverse news screening: This is a process of checking the clients' names and related parties against various sources of negative or adverse information, such as media reports, sanctions lists, watch lists, law enforcement databases, etc. Adverse news screening can help the financial institution to detect any potential red flags or indicators of money laundering or other criminal activities involving their clients, and to take appropriate actions, such as conducting enhanced due diligence, filing suspicious activity reports, or terminating the relationship.
Transaction monitoring: This is a process of reviewing and analyzing the clients' transactions and activities, such as deposits, withdrawals, transfers, payments, etc., to identify any unusual or suspicious patterns or behaviors that deviate from their normal or expected profile. Transaction monitoring can help the financial institution to detect any possible signs of money laundering or other financial crimes, such as structuring, layering, integration, fraud, tax evasion, etc., and to investigate and report them accordingly.
The other options are not measures that the financial institution should implement in order to identify and investigate money laundering activity from their clients, although they may be part of the overall AML program or compliance culture:
Integrity policy: This is a document that outlines the ethical principles and values that guide the conduct and behavior of the financial institution and its employees. An integrity policy can help the financial institution to promote a culture of honesty, transparency, and accountability, and to prevent or deter any misconduct or corruption. However, an integrity policy alone is not sufficient or specific enough to identify and investigate money laundering activity from their clients.
Whistleblower hotline: This is a mechanism that allows the employees or other stakeholders of the financial institution to report any suspected or observed violations of the AML policies, procedures, or regulations, or any other wrongdoing or malpractice, without fear of retaliation or reprisal. A whistleblower hotline can help the financial institution to encourage and facilitate the reporting of any potential or actual money laundering activity from their clients or within the organization, and to protect the rights and interests of the whistleblowers. However, a whistleblower hotline is not a measure that the financial institution implements to identify and investigate money laundering activity from their clients, but rather a tool that supports the AML program and compliance function.
Code of conduct: This is a document that defines the standards and expectations of the financial institution and its employees regarding their professional and ethical behavior, responsibilities, and obligations. A code of conduct can help the financial institution to establish and maintain a culture of compliance and integrity, and to prevent or address any conflicts of interest, misconduct, or abuse of power. However, a code of conduct is not a measure that the financial institution implements to identify and investigate money laundering activity from their clients, but rather a framework that governs the AML program and compliance function.
References:
ACAMS CAMS Study Guide, 6th Edition, Chapter 3, Section 3.2
ACAMS CAMS Certification Video Training Course - Exam-Labs
Exam CAMS: Certified Anti-Money Laundering Specialist (the 6th edition)

A financial institution can verify the nature and purpose of a business and its legitimacy by using an independent information verification process, such as by accessing public and private databases. This method can help the financial institution to check the names of businesses against anti-money laundering (AML) watchlists, parse and analyze ownership information to determine beneficial ownership structure, and run the beneficial owners themselves through identity verification and AML watchlist checks1. This can also help the financial institution to comply with the regulatory requirements for customer due diligence (CDD), which include obtaining and analyzing sufficient customer information to understand the nature and purpose of customer relationships for the purpose of developing a customer risk profile2. Other methods, such as reviewing a copy of the corporation's latest audited reports and accounts, undertaking a company search or other commercial inquiries, or reviewing the company's website, may not provide sufficient or reliable information to verify the nature and purpose of a business and its legitimacy.
:
Customer due diligence for banks by the Basel Committee on Banking Supervision, October 2001.
How to Verify Legitimate Businesses and Merchants by Trulioo, March 2021.

In accordance with Financial Action Task Force (FATF) standards [1][2], when the minimum AML requirements of the host country where a financial institution (Fl) operates are less strict than those of the Fl's home country, the Fl is required to ensure that their branches and majority-owned subsidiaries in host countries implement the requirements of the home country, to the extent that host country laws and regulations permit. This means that the Fl should not impose more strict requirements on host country branches, disregarding if host country laws and regulation permit such action, and should not close down its operations in the host countries where minimum AML requirements are less strict than those of the home country. However, the Fl should always apply additional measures on their branches and majority-owned subsidiaries in host countries to manage the money laundering and terrorist financing risk overseas.

A beneficial owner is the natural person who ultimately owns or controls a legal entity or arrangement, such as a company, a trust, or a foundation. Identifying the beneficial owner is essential for preventing and detecting money laundering, terrorist financing, tax evasion, and other illicit activities that may involve the misuse of corporate vehicles. However, some individuals or entities may attempt to conceal the true beneficial ownership of a company by using various techniques, such as complex ownership structures, shell companies, bearer shares, or nominees. A nominee is a person or an entity that acts on behalf of another person or entity, usually for a fee or a commission, without disclosing the identity of the real owner or controller. Nominees can be used to protect or conceal the identity of the beneficial owner and controller of a company or asset. A nominee can help overcome jurisdictional controls on company ownership and circumvent directorship bans imposed by courts and government authorities. While the appointment of nominees is lawful in most countries, the use of nominees for money laundering purposes is illegal and a red flag for suspicious activity. Therefore, the person filling out an application on the company's behalf indicating that a beneficial owner is a nominee for another person not named in the company's documentation is an indicator that there is an attempt to conceal the company's true beneficial ownership12.
The other options are not necessarily indicators of concealment of beneficial ownership, as they may have legitimate explanations or reasons. The company having a subsidiary in another jurisdiction with a local investor as a beneficial owner may be a normal business practice or a strategic decision, as long as the ownership information is transparent and accurate. Recent changes to the company's ownership structure may reflect the company's growth, development, or adaptation to market conditions, as long as they are documented and reported to the relevant authorities. Beneficial ownership information from the time that the company was formed several years ago not matching the current information may be due to natural changes in the company's shareholders, directors, or managers, as long as they are updated and verified periodically.
References:
Concealment of Beneficial Ownership - Financial Action Task Force
What's a Beneficial Owner and Why Does it Matter? - Dun & Bradstreet
[ACAMS Study Guide, 6th Edition, Chapter 6, pp. 171-172]