Which of these adjacency matrices represents a simple graph? a 11 a 12 a 13 Note: [[a11, a 12, a13], [ a21, a22, a23], [ a31, 32,a33] is equivalent to a 21 a22 a23 a31 a32 233 O A) [[1,0,0], [0, 1, 0], [0, 1,1]] B) [[0, 1, 0], [1, 1, 1), (1, 0, 0] ] O [[0, 0, 1], [0, 0, 0], [0, 0, 1] ] O DI [0, 0, 1), (1, 0, 0], [0, 1, 0] ] E) All of them are simple graphs F) B and D O G) None of the answers