In which scenario is a Controller most likely required to undertake a Data Protection Impact Assessment?

SCENARIO
Please use the following to answer the next question:
Due to rapidly expanding workforce, Company A has decided to outsource its payroll function to Company B.
Company B is an established payroll service provider with a sizable client base and a solid reputation in the industry.
Company B's payroll solution for Company A relies on the collection of time and attendance data obtained via a biometric entry system installed in each of Company A's factories. Company B won't hold any biometric data itself, but the related data will be uploaded to Company B's UK servers and used to provide the payroll service. Company B's live systems will contain the following information for each of Company A's employees:
* Name
* Address
* Date of Birth
* Payroll number
* National Insurance number
* Sick pay entitlement
* Maternity/paternity pay entitlement
* Holiday entitlement
* Pension and benefits contributions
* Trade union contributions
Jenny is the compliance officer at Company A. She first considers whether Company A needs to carry out a data protection impact assessment in relation to the new time and attendance system, but isn't sure whether or not this is required.
Jenny does know, however, that under the GDPR there must be a formal written agreement requiring Company B to use the time and attendance data only for the purpose of providing the payroll service, and to apply appropriate technical and organizational security measures for safeguarding the data. Jenny suggests that Company B obtain advice from its data protection officer. The company doesn't have a DPO but agrees, in the interest of finalizing the contract, to sign up for the provisions in full. Company A enters into the contract.
Weeks later, while still under contract with Company A, Company B embarks upon a separate project meant to enhance the functionality of its payroll service, and engages Company C to help. Company C agrees to extract all personal data from Company B's live systems in order to create a new database for Company B.
This database will be stored in a test environment hosted on Company C's U.S. server. The two companies agree not to include any data processing provisions in their services agreement, as data is only being used for IT testing purposes.
Unfortunately, Company C's U.S. server is only protected by an outdated IT security system, and suffers a cyber security incident soon after Company C begins work on the project. As a result, data relating to Company A's employees is visible to anyone visiting Company C's website. Company A is unaware of this until Jenny receives a letter from the supervisory authority in connection with the investigation that ensues. As soon as Jenny is made aware of the breach, she notifies all affected employees.
Under the GDPR, which of Company B's actions would NOT be likely to trigger a potential enforcement action?

SCENARIO
Please use the following to answer the next question:
TripBliss Inc. is a travel service company which has lost substantial revenue over the last few years. Their new manager, Oliver, suspects that this is partly due to the company's outdated website. After doing some research, he meets with a sales representative from the up-and-coming IT company Techiva, hoping that they can design a new, cutting-edge website for TripBliss Inc.'s foundering business.
During negotiations, a Techiva representative describes a plan for gathering more customer information through detailed Questionaires, which could be used to tailor their preferences to specific travel destinations.
TripBliss Inc. can choose any number of data categories - age, income, ethnicity - that would help them best accomplish their goals. Oliver loves this idea, but would also like to have some way of gauging how successful this approach is, especially since the Questionaires will require customers to provide explicit consent to having their data collected. The Techiva representative suggests that they also run a program to analyze the new website's traffic, in order to get a better understanding of how customers are using it. He explains his plan to place a number of cookies on customer devices. The cookies will allow the company to collect IP addresses and other information, such as the sites from which the customers came, how much time they spend on the TripBliss Inc. website, and which pages on the site they visit. All of this information will be compiled in log files, which Techiva will analyze by means of a special program. TripBliss Inc. would receive aggregate statistics to help them evaluate the website's effectiveness. Oliver enthusiastically engages Techiva for these services.
Techiva assigns the analytics portion of the project to longtime account manager Leon Santos. As is standard practice, Leon is given administrator rights to TripBliss Inc.'s website, and can authorize access to the log files gathered from it. Unfortunately for TripBliss Inc., however, Leon is taking on this new project at a time when his dissatisfaction with Techiva is at a high point. In order to take revenge for what he feels has been unfair treatment at the hands of the company, Leon asks his friend Fred, a hobby hacker, for help. Together they come up with the following plan: Fred will hack into Techiva's system and copy their log files onto a USB stick. Despite his initial intention to send the USB to the press and to the data protection authority in order to denounce Techiva, Leon experiences a crisis of conscience and ends up reconsidering his plan. He decides instead to securely wipe all the data from the USB stick and inform his manager that the company's system of access control must be reconsidered.
With regard to TripBliss Inc.'s use of website cookies, which of the following statements is correct?

Chanel Hair Studio is a busy high-end hair salon. In an effort to maximize efficiency of its operations and reduce wait times for appointments, Chanel decides to implement artificial intelligence software that will use client profiles and history to predict which clients will likely be late for their appointments. Information used to create the client profile included appointment history, distance from the salon, and any references to being tardy pulled from the client's social media accounts. If a client is predicted to be late, their appointment will be cancelled within 5 minutes.
Based on the details, what is the biggest potential privacy concern related to Chanel's use of this new software?

Based on GDPR Article 35, which of the following situations would trigger the need to complete a DPIA?