Explanation
This answer suggests using live workshops to map out the sales process as the most effective activity for the BA to understand the sales process at CK. A live workshop is a collaborative session where the BA facilitates a group discussion with stakeholders or users to elicit information, generate ideas, or solve problems. A live workshop can help the BA map out the sales process by engaging participants in creating a visual representation of the process, identifying pain points and opportunities, and reaching a consensus on the current state.
References:https://trailhead.salesforce.com/en/content/learn/modules/salesforce-business-analyst-quick-look/use

The tactical document that the business analyst should use to capture features is a release plan. A release plan is a document that outlines the scope, schedule, resources, and deliverables of a project or enhancement that will be released to production. A release plan helps to communicate and align with stakeholders on what features will be delivered, when they will be delivered, how they will be delivered, and who will be involved in delivering them. A release plan also helps to manage expectations, risks, dependencies, and changes throughout the project lifecycle. References: https://trailhead.salesforce.com/content/learn/modules/salesforce- business-analyst-certification-prep/project-planning

Explanation
A SIPOC diagram is a high-level process map that shows the key elements of a process, such as the suppliers, inputs, outputs, and customers. It can help identify the scope and boundaries of a process and the stakeholders involved. A capability model is a strategic tool that shows the high-level capabilities of an organization, but it does not show the details of a process. A value stream map is a detailed process map that shows the value-added and non-value-added activities, cycle times, wait times, and other metrics of a process, but it may be too complex for capturing key points. References: 1
https://trailhead.salesforce.com/en/content/learn/modules/salesforce-business-analyst-certification-prep/collabor

This answer states that gathering requirements and analyzing them is the first step in the Application Lifecycle Management (ALM) process that should be taken for adding a custom field to a page layout in a sandbox for Universal Containers. ALM is a framework that defines and manages the stages involved in developing, testing, deploying, and maintaining a software application. ALM typically consists of these steps: gather requirements and analyze them, design and build solutions, test solutions, deploy solutions, and maintain solutions. Gathering requirements and analyzing them means that the BA identifies and understands the business needs and expectations of the stakeholders or users, and defines what the solution must do or have to meet them. References:
https://trailhead.salesforce.com/en/content/learn/modules/application-lifecycle-and-development-models