Which of the following statements about graphs is false?

A. A graph is a collection of nodes and a collection of segments connecting pairs of nodes.
B. Graphs are a directed tree structure.
C. A path is a sequence of vertices in which each vertex is adjacent to the next one.
D. Graphs may be directed or undirected.
E. The degree of a vertex is the number of lines incident to it.


Answer: B

Computer Science & Information Technology

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