What information will the calculation using PERT provide the Finance Manager with to use in his CPA?

A Company is undertaking a project for the first time and has given the Finance Manager the task of managing the project. He has been advised to use PERT, as it will help him with his Critical Path Analysis (CPA).

What information will the calculation using PERT provide the Finance Manager with to use in his CPA?
A . The most optimistic time to complete an activity.
B . The most realistic / probable time to complete an activity.
C . The expected time to complete an activity.
D . The most pessimistic time to complete an activity.

Answer: C