Question: consider the LP for finding the shortest-route path from node 1 to node 7. Bidirectional arrows () indicate that travel is possible both ways. Let

consider the LP for finding the shortest-route

consider the LP for finding the shortest-route path from node 1 to node 7. Bidirectional arrows () indicate that travel is possible both ways. Let Xij = 1 if the route from node i to node j is taken and otherwise. 4 2 4 8 6 10 3 3 4 1 5 7 12 7 3 3 9 3 6 Which of the following represents the constraint for Node 2? X12 - X24 + X42 - X25+X52 = 1 None of other choices O X12 + X24 + X23 = 0 X12 - X21+ X24 - X42 + X25 - X52 = 0 X12 - X21 + X24 - X42 + X25 - X52 = 0

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