Question: 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
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?
1. D has no slack but is not critical.
2. B is a critical activity.
3. C is completed before B.
4. D is critical, and has a slack of two days.
5. F is critical, and has zero slack.
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