I really don't understand the argument that A is proactive while C is reactive. The question clearly says 'what should the PM do next?'. The project has a critical and time-sensitive deadline and in my opinion the answer should be C.

Option A is a proactive approach and good for future delivery due to key project that has critical and time-sensitive delivery objectives. Option C is a reactive approach, hence does not see to be a good one.

The project has a critical and time-sensitive deadline. Prolonged focus on the missed deliverable jeopardizes future tasks and the overall project success.

This option emphasizes individual attention, understanding, and proactive solutions. By meeting with the team member: You can discuss the missed deadline, its impact on the project, and the reasons behind it. You can jointly identify any underlying challenges or obstacles faced by the team member, such as workload, knowledge gaps, or resource limitations. You can collaboratively develop a personalized action plan with clear steps and support mechanisms to prevent similar occurrences in the future.

A is the answer. You must work with the team member

should be A

In this situation, the project manager should take a constructive approach to address the issue: A. Meet with the team member and work on a development plan for them to avoid missed deliverables in the future. It's essential to understand the reasons behind the missed deliverable and work collaboratively with the team member to develop a plan for improvement. This approach focuses on helping the team member address any challenges or obstacles they may be facing and aims to prevent future issues without resorting to formal warnings. Open communication and coaching can often lead to better outcomes and improved performance within the team.

B. Hold a team meeting to discuss team member commitments and communications.

C. Record the issue, then refocus the team’s efforts on delivering the next set of deliverables.

C. Record the issue, then refocus the team’s efforts on delivering the next set of deliverables

A seems like the real world answer, but B seems like the test answer.