Question: Activity D on a CPM network has predecessors B and C. and has successor F. D has duration 6. Bs earliest finish is 18. While
Activity D on a CPM network has predecessors B and C. and has successor F. D has duration 6. B’s earliest finish is 18. While C’s is 20. F’s late start is 26. Which of the following is definitely true
A. D is critical and has zero slack
B. B is a critical activity.
C. F is critical, and has zero slack.
D. D has no slack but is not critical.
E. C is completed before B.
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