For the following question(s), refer to the digraph below.
Suppose that the vertices of the digraph represent individuals and there is an arc going from vertex X to vertex Y if and only if X "likes" Y. Which of the following statements [A), B), C), or D)] is not true?
A. B likes E but E does not like B.
B. B and C do not like each other.
C. A likes B and E but does not like C or D.
D. A and B like each other.
E. all of these statements are true.
Answer: A
Mathematics
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