1. The problem which deals with the distribution of goods from several sources to several destinations is the
A. maximal flow problem.
B. transportation problem.
C. assignment problem.
D. shortest-route problem.
2. The parts of a network that represent the origins are
A. the capacities.
B. the flows.
C. the nodes.
D. the arcs.
3. Activities with zero slack
A. can be delayed.
B. must be completed first.
C. lie on a critical path.
D. have no predecessors.