Assume you have a digraph with 5 vertices (A, B, C, D, and E) and 9 arcs. A is incident from C, D, and E; B is incident to D and E and incident from C; D is incident to C and incident from E.How many cycles are there in the digraph that start and end at A?
A. 0
B. 3
C. 2
D. 1
E. none of these
Answer: A
Mathematics
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