Consider the following work breakdown structure Time Estimates (days) Most Likely Pessimistic Optimistic Precedes Activity A,B Start 56 50 44 C,D A 75 60 45 B 48 45 42 F C 49 40 31 D 39 36 27 E 82 70 58 End E What is the estimated expected (mean) time for activity E? Multiple Cholce 35 days 36 days 39 days 40 days 45 days