The marketing technique that helps understand the needs of consumers by tracking their behavior is
"Profiling." ITIL 4 discusses profiling as a method to gain insights into consumer behaviors, preferences, and needs. This technique involves gathering data on consumer interactions and using it to tailor services and marketing efforts to better meet consumer demands.

The best approach for a service consumer to use when they want to obtain services from a service provider is to "Develop a list of needs focusing on what should be achieved." ITIL 4 emphasizes theimportance of focusing on outcomes rather than specific technical requirements. By clearly stating what needs to be achieved, the service provider can design or select the best service to meet those needs.

Sharing user feedback on social media is generally not appropriate if the goal is to improve the volume and quality of feedback received from users. Feedback is often sensitive and can include criticisms or private information that users may not want publicly disclosed. Instead, it's better to focus on gathering and responding to feedback through more controlled and secure channels.
TheITIL 4 Drive Stakeholder Valuemodule emphasizes"Engage"activities, which include collecting and managing feedback to continuously improve service delivery. While adding social media channels (A) and responding to feedback individually (B) are good practices, publicly sharing feedback can breach user trust and discourage future feedback.
Handing out rewards for feedback (C) can be a positive reinforcement strategy to encourage more users to provide feedback, which can then be used to improve services. Sharing feedback publicly (D), however, risks misinterpreting the feedback, violating privacy, or deterring other users from providing honest feedback.

The aspect of 'managing demand and opportunities' that would provide a better understanding of changes in how and when users access services due to working from home is "Analysing patterns of business activity." ITIL 4 explains that understanding patterns of business activity (PBA) helps in predicting demand for services and ensuring that resources are allocated appropriately to meet the varying needs of users.

To track if customers are emotionally satisfied with the service, subjective feedback metrics that directly capture the user's feelings about the service experience are most effective.
* Average Rating:
* The average rating given by users to the service is a direct indicator of their emotional satisfaction. This metric reflects the users' overall sentiment and experience with the service, making it the most appropriate for gauging emotional satisfaction.