In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - DF, GJ, KM, NQ, RT, ?

D. UX

What will be the next term in : BDF, CFI, DHL, ?

C. EJO

What terms will fill the blank spaces ?
Z, X, V, T, R, (....), (....)

E. P, N

In following alphabet series , one term missing as shown by question mark . Choose missing term from options. - cx, fu, ir, ?, ol, ri

A. LO

Choose the term which will continue the following series :
P 3 C, R 5 F, T 8 I, V 12 L, ?

C. X 17 O