If a graph G has n vertices and n−1 edges, n≥3 , then it must be that  Select one: a. G cannot contain a circuit containing all of the vertices in G . b. All of the other answers are correct. c. G is a tree d. G contains at least one vertex of degree one.

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A: Option B is the correct answer

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A: The answer is given below:-

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A: I have solved this in java

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A: Answer is 'Complete'

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A:

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