Suppose that graph G has the following adjacency lists :
1- (2,3,4)
2- (1,3,4)
3- (1,2,4)
4- (1,2,3,6)
5- (6,7,8)
6- (4,5,7)
7- (5,6,8)
8- (5,7)
(a) Draw G.
(b) Give the sequence of vertices visited using depth-first search starting a t vertex 1.
(c) Give the sequence of vertices visited using breadth-first search starting at vertex 1.