Question: A simple CPM network has three activities, D, E, and F. D is an immediate predecessor of E and of F. E is an immediate

A simple CPM network has three activities, D, E, and F. D is an immediate predecessor of E and of F. E is an immediate predecessor of F. The activity durations are

D=4,

E=3,

F=6.

A. The critical path is D-F, duration 10.

B. Slack at E is 3 periods.

C. Slack at D is 0 periods.

D. The critical path is D-E-F, duration 12.

E. Both A and C are true.

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