During the Define Activities process, a team member begins to discuss activities that the project manager has never heard discussed. What should the project manager do?
A、Make sure he has a good understanding of the activities and include the activities in the activity list.
B、Ask the team member to explain why such an activity would be needed to complete the work package.
C、Make sure the entire team agrees that the activities should be don
D、Evaluate the impact of the change.