The following project network is given with arrows as activities and the numbers by each arrow representing job durations in days. The network has two dummy activities D1 and D2. The minimum completion time of the project in days is
A. 13
B. 19
C. 75
D. 68
Answer: Option D
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A. Unique optimal solution
B. Multiple optimal solution
C. Unbounded solution
D. Infeasible solution
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