A project has five activities with the durations (days) listed below:

Activity	Precedes	Expected Duration	Variance
Start	A, B	-	-
A	C	98	0.16
B	E	15	1
C	D	21	0.3
D	End	42	3.54
E	End	22	0

What is the probability that the project will be completed within 169 days?

a.

0.18

b.

0.25

c.

0

d.

1

e.

0.82