What is the next letter in the series: B, E, H, K, ?

A. N

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

B. J

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

C. I

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

B. S

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

B. J