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

B. S

Complete the series: B, D, F, H, ?

C. I

What is the next letter in the series: A, C, E, G, ?

B. H

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

D. P

What is the next term in the series: A, E, I, M, ?

A. O