The choices of the fruits of 42 students in a class are as follows:
A, O, B, M, A, G, B, G, A, G,
B, M, A, G, M, A, B, G, M, B,
A, O, M, O, G, B, O, M, G, A,
A, B, M, O, M, G, B, A, M, O, M, O,
where A, B, G, M and O stands for Apple, Banana, Grapes, Mango and Orange respectively.Which two fruits are liked by an equal number of students?
AA and M
BM and B
CB and O
DB and G