Which of the following statements are true?
Consider a digraph with the following vertices and edges:
vertices: A, B, C, D
edges: (A,B), (B,A), (C,D)
a) The graph has a cycle
b) The graph is connected
c) The graph is acyclic
d) all of the above are true
e) neither a, b, nor c are true.
a) The graph has a cycle
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