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

B. H

Identify the missing letter in the series: Z, Y, X, W, ?

A. V

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

D. P

Complete the series: a, c, e, g, ?

B. H

Complete the series: a, c, e, g, ?

B. H