A network consists of the activities in the following list.Durations are given in weeks. What is critical path and completion time for this project?

Activity	Predecessor	Duration
A	-	8
B	-	3
C	A	7
D	A,B	3
E	C	4
F	D	6

	A.	Path: B-C-E, Duration: 17 weeks
	B.	Path: A-D-E Duration: 17 weeks
	C.	Path: A-D-E Duration: 19 weeks
	D.	Path: A-C-E Duration: 19 weeks