Final answer:
The correct answer is d. Arcs in a transshipment problem connect every node to a transshipment node, represent the cost of shipments, and indicate the direction of the flow.
Step-by-step explanation:
The correct option is d. All of the alternatives are correct.
Arcs in a transshipment problem:
- Connect every node to a transshipment node.
- Represent the cost of shipments.
- Indicate the direction of the flow.
In a transshipment problem, arcs are used to connect every node to a transshipment node. This allows for the flow of goods or resources between different nodes in the network. The costs associated with each shipment are represented by the arcs, indicating the cost of moving resources from one node to another. Additionally, the direction of the flow is indicated by the direction of the arcs, showing the movement of resources from one node to another.