What should come in place of the question mark (?) in the given series based on the English alphabetical order?
UZG, XCJ, AFM, DIP, ?

Given: UZG, XCJ, AFM, DIP, ?

Logic: Letters are increasing + 3 place.

U + 3 = X, X + 3 = A, A + 3 = D, D + 3 = G

Z + 3 = C, C + 3 = F, F + 3 = I, I + 3 = L

G + 3 = J, J + 3 = M, M + 3 = P, P + 3 = S

So, the missing term is GLS.

Thus, correct option is (a).