Y, W, U, S, Q, ?, ? - Alphabet Series - Series Completion - Verbal Reasoning Questions and Answers

In following alphabet series , one term missing as shown by question mark . Choose missing term from options.

Y, W, U, S, Q, ?, ?

A. N, J

B. M, L

C. J, R

D. L, M

E. O, M

Answer: E . O, M

Justification:

The series consits of alternate letters in reverse order.