Correct option is A
Given: PUCD is related to NTEE and HQKH is related to FPMI with same logic.

Logic: 1st letter - 2, 2nd letter - 1, 3rd letter + 2 and 4th letter + 1 place.
For, PUCD - NTEE
P - 2 = N, U - 1 = T, C + 2 = E, D + 1 = E
For, HQKH - FPMI
H - 2 = F, Q - 1 = P, K + 2 = M, H + 1 = I
Similarly,
BNQK - ?
B - 2 = Z, N - 1 = M, Q + 2 = S, K + 1 = L
So, BNQK is related to ZMSL.
Thus, correct option is (a).