Final answer:
Requirements documentation and the requirements traceability matrix are outputs of both Plan Scope Management and Plan Requirements Management.
Step-by-step explanation:
The correct answer is option 3) Outputs of both Plan Scope Management and Plan Requirements Management.
Requirements documentation is a deliverable of the Plan Requirements Management process, which involves documenting the project requirements. The requirements traceability matrix is a tool used in the Plan Scope Management process to ensure that all project requirements are traced back to their source.
By having both requirements documentation and a requirements traceability matrix, project managers can effectively manage and track the scope of a project, ensuring that all requirements are met.