Explanation
The business analyst should encourage the project stakeholders to think of various ways to solve cases differently before deciding on a specific solution. This is because the business analyst should focus on understanding the problem or need that the project is trying to address, rather than jumping to a predefined solution. By exploring different options and alternatives, the business analyst can help the project stakeholders find the best fit solution that meets their requirements and expectations, as well as aligns with the project scope, budget, and timeline.
References:https://trailhead.salesforce.com/content/learn/modules/salesforce-business-analyst-certification-prep/

Explanation
The type of session that the business analyst should perform to elicit user stories from UC's customers is journey mapping. Journey mapping is a technique that involves creating a visual representation of the steps or stages that a customer goes through when interacting with an organization, product, or service. Journey mapping helps to capture the customer's experience, needs, goals, pain points, emotions, and touchpoints across their entire lifecycle. Journey mapping also helps to identify any gaps or opportunities for improvement or innovation in the customer journey. Journey mapping can help elicit user stories from UC's customers byallowing them to share their perspectives and feedback in their own words, as well as showing how the solution can add value and benefits to their journey.
References:https://trailhead.salesforce.com/content/learn/modules/salesforce-business-analyst-certification-prep/

Explanation
User stories are short descriptions of a feature or functionality from the perspective of an end user. They follow the format "As a <who>, I want <what>, so that <why>". The who is the user role or persona who will benefit from the feature or functionality. The what is the feature or functionality that the user wants or needs.
The why is the benefit or value that the user will get from the feature or functionality. User stories help translate requirements in a way that shows a product's value to the end user and helps prioritize and validate them. User stories do not provide specific details about a product early in the development lifecycle because they are usually high-level and flexible. User stories do not decrease the need for collaboration within a product team throughout the project because they require constant communication and feedback among stakeholders, developers, and testers. References: 1
https://parquet.dev/a-guide-to-salesforce-user-acceptance-testing/