What is the next letter in the series: M, N, O, P, ?

A. Q

Find the missing letter in the series: z, x, v, t, ?

C. Q

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

B. J

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

A. V

Identify the missing letter in the series: z, x, v, t, ?

A. R