H,G
H, I
I,H
J, I
Answer is Wrong!
Answer is Right!
The correct answer is B. H, I.
The sequence is a simple alternating repetition of the letters Z, Y, X, U, T, S, P, O, N, K, H, I. The first two letters are Z and Y, and the second two letters are X and U. The third two letters are T and S, and the fourth two letters are P and O. The fifth two letters are N and K, and the sixth two letters are H and I.
Option A is incorrect because G is not in the sequence.
Option C is incorrect because I is not in the first two letters of the sequence.
Option D is incorrect because J is not in the sequence.