Let G = (V, E) be a simple graph where V = {a, b, c, d, e, f} and |E| = 6. Suppose that: deg(a) = 2 deg(b) = 2 deg(c) = 1 deg(d) = 2 deg(e) = 2 What is deg(f)? Why? Let G = (V, E) be a sample graph where |V| = 10 and |E| = 45. This graph is __________ because