正解:A
Explanation
According to the PMBOK Guide, the project manager should first meet with the project team to develop a proper resolution to the issue. This is because the project team is the best source of information and expertise on the project work, and they can provide valuable insights and suggestions on how to overcome the challenges and complete the stories that require more time. The project manager should facilitate a collaborative discussion with the team to identify the root causes of the issue, evaluate the possible alternatives, and agree on the best course of action. This approach is consistent with the agile principles of self-organizing teams, adaptive planning, and continuous improvement. References: PMBOK Guide, 6th edition, pages 18, 37, 152, 176, 542.