During the course of a project, a junior team member approaches the project manager for...

Some of the other options are not appropriate because:

A. Tell the junior team member that the information is available in lessons learned. This option does not address the immediate need of the junior team member for direction and advice on risk mitigation. Lessons learned are valuable sources of information, but they are usually documented and reviewed at the end of the project or phase3. The project manager should not rely on lessons learned alone to provide guidance to the junior team member, but rather use them as a reference to supplement their own experience and expertise.

C. Inform the junior team member that risk mitigation is not part of their work. This option is incorrect because risk mitigation is part of the project team’s work. PMI states that "The project team is responsible for identifying, analyzing, and responding to project risk."4 The project manager should not exclude the junior team member from the risk management process, but rather involve them and delegate appropriate tasks and responsibilities to them.

D. Refer the junior team member to the senior team member who develops the risk mitigation strategy. This option may seem reasonable, but it does not demonstrate the project manager’s leadership and coaching skills. The project manager should not pass on the junior team member’s request to another team member, but rather take the opportunity to mentor and develop the junior team member. The project manager can consult with the senior team member who develops the risk mitigation strategy, but they should also provide their own guidance and feedback to the junior team member.

I hope this information helps you with your query. However, I suggest that you consult the official PMP and PBA reference materials and guides for more accurate and reliable information. Thank you for using Bing. ????