Select the letter that can replace the question mark (?) in the following series. K, I, G, E, C, ?

A D B Z

A

K, I, G, E, C, ? The difference between consecutive terms is 2 , such that: The logic followed here is : K → (-2) → I→ (-2) → G→ (- 2) →E  → (-2) → C → (-2) → A Thus, the missing term is A