Which of the following letter-clusters should replace # and % so that the pattern and relationship followed between the letter-cluster pair on the left side of :: is the same as that on the right side of :: ?
# : LQT :: ZEH : %​

Correct option is C

Given: #: LQT :: ZEH : %

​Logic:

Each letter in the second cluster is +3 forward in the English alphabetical order from the corresponding letter of the first cluster.

Facts & Explanation (Operation-wise):

For left pair → LQT → #
L + 3 = O
Q + 3 = T
T + 3 = W
→ # = OTW

For right pair → ZEH → %
Z - 3 = W

E - 3= B

H -3 = E

Hence,
# = OTW, % = WBE

Final Correct Option: (C)