After running Breadth First Search on the following graph, using vertex U as the source. Which of the following is correct? w M K N Z Select one: a. none O b.d[M]=1 and 17 [M]=U ; d[N]=3 and 17 [N]= W; d[W]=2 and 1 [W]= X C. d[M]=1 and [7[M]= U ; d[N]=2 and [7] [N]= Z ; d[W]=2 and 1 [W]= X d. d[M]=3 and 1[M]= N; d[N]=2 and 11 [N]=Z: d[W]=3 and 1 [W]=N