Fill in the missing entries to complete the adjacenty list representation of the given graph. 1 2 (a) V = {1, 2, 3, 4} 2 1 (b ) 4 E = {{2, 1), (3, 2). (4, 2). (1, 4), (3, 4}} 3 (c) 4 4 (d) 3 (a): Ex: 3 (b): (c): (d)