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.Vertex B has
A. indegree 3, outdegree 0.
B. indegree 0, outdegree 3.
C. indegree 2, outdegree 1.
D. indegree 1, outdegree 2.
E. none of these
Answer: D
Mathematics
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