What is the storage of the Developer Pro Sandbox?

A business analyst (BA) at Universal Containers (UC) has been asked to evaluate a business process at a high level and in detail, while also keeping regulatory considerations in mind. Management wants to use the output from the BA's evaluation to inform decisions about UC's future implementations of Sales Cloud and Service Cloud.
What should the BA use for their evaluation?

Universal Containers is developing a new recruitment app using Service Cloud. The project team has started writing user stories including:
"As a human resources (HR) manager, I need to document the progress of a candidate's submission so I can manage the candidate's application throughout the recruiting process." What is one definition of done for this user story?

As part of the digital transformation at Cloud Kicks, company leaders have decided to adopt Service Cloud as its CRM platform for customer service and support. Executive directors are supportive of the initiative, but end users are unconvinced and prefer to remain on the current platform.
What should the business analyst do to gain the end users' cooperation?

The finance team is rolling out a new sales process in Sales Cloud for opportunities that are Closed/Won. After meeting with the team, a business analyst (BA) realizes that several requirements for the new process will need further refinement.
What should the BA use to keep track of changes to the process documents?