Explanation
The Manage Sandbox permission is required to create, delete, refresh or activate a Sandbox. Sandbox Editor, Environment Manager, and System Administrator are not valid permissions in Salesforce.
References:https://help.salesforce.com/s/articleView?id=sf.data_sandbox_manage.htm&type=5

Strategy analysis is the process of identifying and evaluating the risks and benefits of a proposed solution, as well as its alignment with the business goals and objectives. A business analyst performs strategy analysis to understand the impact of a solution on the project timeline, budget, scope, quality, and stakeholders.
References:
* https://trailhead.salesforce.com/en/content/learn/modules/salesforce-business-analyst-certification-prep/pe
* https://www.iiba.org/standards-and-resources/babok/strategy-analysis/

The first step that the business analyst should take during the initial discovery phase is to understand and document the data quality issues reported by the data science team. Data quality issues are problems or errors that affect the accuracy, completeness, consistency, timeliness, or validity of data in a system or database. Data quality issues can negatively affect the analysis, reporting, decision making, or performance of a system or solution. The business analyst should understand and document the data quality issues reported by the data science team by asking questions, reviewing data samples, identifying root causes, and measuring impacts.
Understanding and documenting the data quality issues helps to define and prioritize the business problem or need, as well as propose and evaluate potential solutions. References:
https://trailhead.salesforce.com/content/learn/modules/salesforce-business-analyst-certification-prep/customer-di

Explanation
A user story is a type of documentation that describes what functionality a system should provide from a user's perspective. It is written in simple language that anyone can understand and follows a standard format of "As a [user role], I want [functionality], so that [benefit]". A user story helps to capture the user's needs and expectations from the system and provides a basis for developing test cases and acceptance criteria. A BA should use user stories to document the functionality that a system should provide so it can be developed into a work item. References:
https://trailhead.salesforce.com/en/content/learn/modules/business-analysis-user-stories/write-user-stories

The best tool for identifying the key recruitment steps and stakeholders in a visual format is to map the business process. Business process mapping is a technique that helps to create a visual representation of a business process. It shows the steps, inputs, outputs, roles, and decisions involved in the process. Business process mapping helps to understand the current state of the process, identify areas for improvement, and design the future state of the process. A BA should use business process mapping to identify the key recruitment steps and stakeholders for the Salesforce application. References:
https://trailhead.salesforce.com/en/content/learn/modules/business-analysis-process-mapping/understand-process