A product implementation project has a baseline schedule that indicates it should be complete within 30 days using three internal resources. As it nears completion, the project manager learns that one resource has left the project team. The sponsor approves
hiring an external resource at an additional cost.

To determine if the contingency reserve will be required, what should the project manager calculate?


A. Budget at completion (BAC)
B. Variance at completion (VAC)
C. Estimate at completion (EAC)
D. Cost variance (CV)