In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - CE, GI, KM, OQ, ?

C. SU

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - AZ, CX, FU, ?

C. JQ

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - R, M, ?, F, D, ?

E. I, C

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - AYD, BVF, DRH, ?, KGL

D. GLJ

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - Q1F, S2E, U6D, W21C, ?

C. Y88B