According to the Basel Committee on Banking Supervision, banks should adopt a risk-based approach to customer due diligence, which includes four essential elements1:
* A customer acceptance policy that defines the types of customers that are likely to pose a higher than average risk to the bank.
* A customer identification program that collects and verifies information about the customer's identity, beneficial ownership, and purpose of the account or relationship.
* An on-going monitoring of high-risk accounts to detect and report any unusual or suspicious activity, and to keep customer information up-to-date.
* A risk management program that ensures that the bank's policies and procedures are implemented effectively, and that the bank's staff are trained and aware of their AML/CFT obligations.
Therefore, documenting a customer acceptance policy and establishing on-going monitoring of high-risk accounts are the correct choices for the essential elements that should be included in the program based on Basel's KYC principles.: 1: Basel Committee on Banking Supervision, Customer due diligence for banks, October 2001, page 8.

These are the information that can help the correspondent bank to assess the risk profile, the regulatory compliance, and the operational capacity of the respondent bank, and to verify its identity and legitimacy. The correspondent bank should obtain and verify the following information about the respondent bank:
* Respondent's management, nature of license, and major business activity. This can help the correspondent bank to understand the governance, the legal status, and the core functions of the respondent bank, and to evaluate its reputation, integrity, and competence.
* The quality of supervision in the home country. This can help the correspondent bank to determine the level of oversight and regulation that the respondent bank is subject to, and to identify any potential gaps or weaknesses in the anti-money laundering and counter-terrorist financing (AML/CTF) framework of the home country.
* Respondent's location, in particular the existence of a real physical presence. This can help the correspondent bank to verify the actual existence and operation of the respondent bank, and to avoid dealing with shell banks or banks located in high-risk or non-cooperative jurisdictions.
The other option is not necessarily information that should be included to establish a rigorous "Know Your Respondent" procedure, although it may have some relevance or importance depending on the circumstances and the nature of the correspondent relationship. Option 2 describes computer equipment and software capability, which may be useful to assess the technical and operational compatibility and efficiency of the respondent bank, but it is not essential to evaluate its risk or compliance level.
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ACAMS CAMS Certification Video Training Course - 6th Edition1
Exam CAMS: Certified Anti-Money Laundering Specialist (the 6th edition)2 ACAMS CAMS Study Guide - 6th Edition, Chapter 7, pages 154-155: https://www.acams.org/wp-content/uploads/2019/09/ACAMS-CAMS-Study-Guide-6th-Edition-Chapter-7.
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According to the Financial Action Task Force (FATF), a financial institution must take certain steps to fulfill its customer due diligence (CDD) obligations [1][2]. These steps include verifying the customer's identity, understanding the customer's business, and assessing the customer's risk profile. Additionally, the financial institution must verify that the customer is not on any sanction lists, such as the OFAC Specially Designated Nationals list. This step is important to ensure that the financial institution is not doing business with any individuals or entities that are subject to economic sanctions. Other steps include obtaining information on the intended nature of the banking relationship, securing a written declaration from the customer confirming the source of the funds, and identifying shareholders listed on the stock exchange of corporate entities holding fifty percent of the shares.

Export and import restrictions are sanctions imposed by countries to limit or prevent the import or export of certain goods and services. Export and import restrictions are typically used in order to protect a country's economic or political interests, or to prevent the proliferation of weapons or other dangerous materials. Export and import restrictions are often the first type of sanctions used in order to avoid escalating violent conflicts and/or proliferation of weapons. Examples of export and import restrictions include embargoes, quotas, or tariffs.

According to the Basel Committee on Banking Supervision's Customer Due Diligence for Banks1, banks should have policies and procedures to identify and manage high-risk customers, such as those who provide false or incomplete information, have complex or opaque beneficial ownership structures, or are involved in large or unusual transactions. In such cases, banks should apply enhanced due diligence measures, such as obtaining additional information or documentation, verifying the source and purpose of funds, conducting more frequent and intensive monitoring of account activity, and reporting any suspicious transactions to the relevant authorities. Therefore, the best course of action for the bank in this scenario is to implement enhanced due diligence procedures to monitor the account for suspicious activity, as option B suggests.
Option A is not recommended, as it would imply that the bank accepts the customer without verifying his identity and background, which would expose the bank to money laundering and terrorist financing risks.
Option C is not advisable, as it would terminate the relationship without investigating the origin and destination of the funds, which could hinder the efforts of law enforcement agencies to trace and recover illicit assets. Option D is also not appropriate, as it would involve sending a check to a customer whose address and identity are not confirmed, which could facilitate money laundering and fraud.
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5: Customer due diligence for banks - Bank for International Settlements, October 2001, pages 8-9, 13-14.