What character is missing in the series M, N, O, ?, Q, R?

A. P

In the sequence A, B, C, D, ?, F, G, what character should replace the question mark?

A. E

In the sequence P, Q, R, S, ?, U, V, which character is missing?

A. T

What character should replace the question mark in the sequence A, B, C, ?, E?

A. D

Identify the missing character in the pattern: X, Y, ?, A, B.

A. Z