Which of the following terms will replace the question mark (?) in the given series to make it logically complete?
OWJ 4, MUH 9, KSF 14, IQD 19,?

Given:  OWJ 4, MUH 9, KSF 14, IQD 19, ?

Logic: First letters, second letters, and third letters shift backward by 2 position, and the numbers increase by 5.

First letters (O, M, K, I, ?)

O - 2 = M, M - 2 = K, K - 2 = I, I - 2 = G

Second letters (W, U, S, Q, ?)

W - 2 = U, U - 2 = S, S - 2 = Q, Q - 2 = O

Third letters (J, H, F, D, ?)

J - 2 = H, H - 2 = F, F - 2 = D, D - 2 = B

Numbers (4, 9, 14, 19, ?)

4 + 5 = 9, 9 + 5 = 14, 14 + 5 = 19, 19 + 5 = 24

Thus, the correct option is (c) GOB 24.