A delivery truck must deliver packages to five different store locations (A, B, C, D, and E). The trip must start and end at D. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The cheapest-link tour starting with vertex D is given by:
A. D, A, B, E, C, D.
B. D, C, A, B, E, D.
C. D, B, E, C, A, D.
D. D, E, A, B, C, D.
E. none of these
Answer: D
Mathematics
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