Your project schedule has just been developed, approved, and distributed to the stakeholders and presented to senior management when one of the resources assigned to an activity approaches you and tells you that her activity cannot be performed within the allotted time due to several necessary pieces that were left out of planning. Her revised estimate would change the schedule but would not affect the critical path. What would be the BEST way for the project manager to handle this situation?

A. Stick with the published schedule and allow for any deviation by using schedule reserve.

B. Go back to Activity Duration Estimating and update the schedule and other plans to reflect the new estimate.

C. Hire an independent consultant to validate her claim.

D. Replace the resource with someone who says they can meet the published schedule.