A simple sequential project (each task must be completed before the next one can begin) has the time estimates (in days) shown below Task Best Most Worst Expected Standard Standard Likely Case Case Duration Deviation Deviation Squared 2 3 2 4 B 1 1.5 2 COA .5 1.5 D 1.5 -N- 2 2.5 5 1 1.5 F 14 .5 .6 What is the probability that the project will be completed within 85 days? (Choose the closest answer) a 5 percent Ob 80 percent C. 20 percent d. 75 percent