Q5B. Consider the graph with the following vertices and edges: V = {a, b, c, d, e, f} E = {{a, b}, {a, c}, {a, f}, {b, c}, {b, f}, {c, d}, {c, f}, {d, e}, {d, f}} Explain why the graph either does or does not have an Euler trail. C b A f a d CD All vertices have even degree. Therefore, the graph does not have an Euler trail. Exactly two vertices (c and e) have odd degree. Therefore, the graph does have an Euler trail. Exactly two vertices (b and e) have odd degree. Therefore, the graph does have an Euler trail. All vertices have odd degree. Therefore, the graph does not have an Euler trail. Four vertices (a, b, d, and e) have odd degree. Therefore, the graph does not hav an Euler trail.

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