NIDG is related to RLFH in a certain way based on the English alphabetical order. In the same way, JYSQ is related to NBUR. To which of the following is TRBJ related, following the same logic?

Given: NIDG is related to RLFH and JYSQ is related to NBUR with same logic. 

Logic: 1st letter + 4, 2nd lette + 3, 3rd letter + 2 and 4th letter + 1 place.

For, NIDG - RLFH

N + 4 = R, I + 3 = L, D + 2 = F, G + 1 = H

For, JYSQ - NBUR

J + 4 = N, Y + 3 = B, S + 2 = U, Q + 1 = R

Similarly,

TRBJ - ?

T + 4 = X, R + 3 = U, B + 2 = D, J + 1 = K

So, TRBJ is related to XUDK.

Thus, correct option is (b).