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In the network shown in Fig. , activity 4-5 can be started only when | |
A. | activity 3-4 is completed [Wrong Answer] |
B. | activity 2—4 is completed [Wrong Answer] |
C. | activity 2-3 is completed [Wrong Answer] |
D. | activity 2-4 and 2>-A both are com-pleted [Correct Answer] |