Identify the missing letter in the series: Z, X, V, T, ?

C. Q

What letter should replace the question mark in the series: A, E, I, M, ?

A. O

Identify the missing letter in the series: Z, X, V, T, ?

B. S

Identify the missing letter in the series: Z, X, V, T, ?

C. Q

B, D, F, H, ?

A. J