(a) Let X = {1, 2, 3, 4, 5}. Construct the loop-free undirected graph G = (V, E) as follows:
• (V): Let each two-element subset of X represent a vertex in G.
• (E): If v1, v2 ∈ V correspond to subsets {a, b} and {c, d}, respectively, of X, then draw the edge {v1, v2} in G if {a, b} D {c, d] = 0.
(b) To what graph is G isomorphic?