Select the letter that can replace the question mark (?) in the following series.

A, C, E, D, C, E, G, F, ?

E

A, C, E, D, C, E, G, F, ?

The difference between consecutive terms is +2, +2, -1, -1, +2, +2, -1, -1 , such that:

The logic followed here is :

A → (+2) → C → (+2) →E → (- 1) → D → (-1) →C → (+2) → E → (+2) → G → (-1) →  F → (-1) → V

Thus, the missing term is E