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Question $13$

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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 $D=4,E=3,F=8.$

Select one:

A$.$ Slack at $E$ is $3$ periods.

B$.$ Slack at $D$ is $3$ periods.

C$.$ The critical path is D$-$E$-$F$,$ duration $15.$

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