If vertex Penguins can reach vertex Capitals and vertex Capitals can reach vertex Islanders, but none of them can reach vertices Sharks or Ducks, what can you say about the set of vertices Penguins, Capitals, and Islanders?

A. the set is a connected component
B. the set describes a complete graph
C. the vertices in the set are all adjacent to each other
D. the set describes a connected graph


Answer: A

Computer Science & Information Technology

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