Which of the following is always true for a connected graph? Select one: O a. all vertices have even degree O b. there is a path from each vertex to any other vertex O c. has a subgraph which is a circuit O d. each vertex is adjacent to every other vertex have exactly 2 vertices having odd degree

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A: The given question is related to graph theory. The solution is explained below.

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Q: 1) Find the degree of each vertex in the following graph

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Q: 1. Find all 6 subgraphs of the following graph. 22 O

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Q: is The number of edges in a complete bipartite graph K5 O 15 O 20 O 30 O 10

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Q: choose 2

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