What will come in place of the question mark (?) in the following letter series? G, J, O, V, ? MCQ with Answer and Explanation

Explanation:
First letters: S, W, A, E, I (+4, wrapping around). Second letters: U, Y, C, G, K (+4, wrapping around). The next term is IK.

Explanation:
First letters: A(1)+4=E(5), E+4=I(9), I+4=M(13), M+4=Q(17). Second letters: B(2)+4=F(6), F+4=J(10), J+4=N(14), N+4=R(18). The missing pair is QR.[reference:8]

Explanation:
First: K, Q, W, C, I (+6 each, wrap). Second: N, T, Z, F, L (+6 each, wrap). So IL.