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

B. H

What is the next letter in the series: B, E, I, M, ?

A. O

Z, X, V, T, ?

A. R

Find the odd one out in the series: A, C, E, G, I, K, M, O, Q, R

D. R

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

A. I