Use This Information to Answer the Following Questions

Multiple Choice

Use this information to answer the following questions.
Consider the following Activity-On-Node (AON) PERT project.The three values that represent each activity's completion time (in days) correspond to an optimistic time,most likely time,and pessimistic time,respectively.

-Refer to the figure.What is the expected completion time of the critical path?

A) 16 days
B) 17 days
C) 18 days
D) 19 days
E) 20 days