Correct option is A
Given Series:
OQJ, MOH, KMF, IKD, ?

1st Letter pattern:
O → M (O - 2 = M)
M → K (M - 2 = K)
K → I (K - 2 = I)
I → G (I - 2 = G)
2nd Letter pattern:
Q → O (Q - 2 = O)
O → M (O - 2 = M)
M → K (M - 2 = K)
K → I (K - 2 = I)
3rd Letter pattern:
J → H (J - 2 = H)
H → F (H - 2 = F)
F → D (F - 2 = D)
D → B (D - 2 = B)
Therefore, the next group is: GIB
Correct answer is (A) GIB
O → M (O - 2 = M)
M → K (M - 2 = K)
K → I (K - 2 = I)
I → G (I - 2 = G)
2nd Letter pattern:
Q → O (Q - 2 = O)
O → M (O - 2 = M)
M → K (M - 2 = K)
K → I (K - 2 = I)
3rd Letter pattern:
J → H (J - 2 = H)
H → F (H - 2 = F)
F → D (F - 2 = D)
D → B (D - 2 = B)
Therefore, the next group is: GIB
Correct answer is (A) GIB