Question 11
Suppose we obtain the following DFS tree rooted at node A for an undirected graph with vertices {A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P}.
Which of the following cannot be an edge/edges in the original graph?
(A, K)
(H, J)
(M, N)
(B, O)
(P, E)
(C, M)