LMOP
MNO
MNOP
NOPQ
Answer is Right!
Answer is Wrong!
The correct answer is $\boxed{\text{LMOP}}$.
The sequence is a simple alternating repetition of the letters A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y.
The first two letters are A and C. The next two letters are G and I. The next two letters are M and P. Therefore, the next two letters are L and M.