An agile senior team member abruptly resigns. After the departure, the remaining team members cannot access necessary information and cannot finish a deliverable. What should the project manager have done to prevent this?

The correct answer is "Ensured the project repository is up to date" because a well-maintained project repository acts as a central, accessible knowledge base. If the repository contained all necessary information and documentation, the team would not be blocked by a single member's departure. This practice promotes information sharing and reduces single points of failure, aligning with agile principles of transparency and collective ownership. "Made an effort to reemploy the senior project team member" is incorrect because it's a reactive measure that doesn't address the underlying issue of knowledge concentration. "Updated the job descriptions for all team roles" is irrelevant to the immediate problem of information access after a team member's departure. "Provided specialist training for all team members" is impractical and unnecessary for every team member to have deep specialist knowledge; the goal is information accessibility, not universal expertise.