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

D. S

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

A. I

What letter comes next in the series: M, O, Q, S, ?

A. T

What comes next in the series: M, O, Q, S, ?

B. T

What letter should come next in the series: B, D, F, H, ?

A. J