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

A. Q

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

C. R

A, E, I, M, ?

A. O

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

A. Q

Find the odd one out in the series: A, D, G, J, M, P, ?

B. R