2. Decide if the statement is True or False. Justify your answer. Explain why is it true or why not, and give an example/counterexample where necessary. a) Does the poset (P(Z), ≤) have minimal element(s)? There is a vertex in a bipartite graph G-(VE) with deg(v)-m+n, where c) The sum of all vertex degrees in an undirected graph is always even number. d) Kn has a Hamiltonian circuit for every natural number n ≥ 3.

Q: Need help with this question. Please explain each step and neatly type up. Thank you :)

A: Step 1: Step 2: Step 3: Step 4:

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