Question: (a) Explain why it is not possible to draw a loop-free connected undirected graph with eight vertices, where the degrees of the vertices are 1,

(a) Explain why it is not possible to draw a loop-free connected undirected graph with eight vertices, where the degrees of the vertices are 1, 1, 1, 2, 3, 4, 5, and 7.
(b) Give an example of a loop-free connected undirected multigraph with eight vertices, where the degrees of the vertices are 1, 1, 1, 2, 3, 4, 5, and 7.

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