Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which letter-cluster pair DOES NOT belong to that group?
(Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)​

Logic: 1st letter + 8 = 3rd letter and 2nd letter + 7 = 4th letter

Now, we check each options.

Option (a): UP – CW (Follow)

U + 8 = C, P + 7 = 

Option (b): JE – RL (Follow)​

J + 8 = R, E + 7 = L

Option (c): BW – JD (Follow)​

B + 8 = J, W + 7 = D

Option (d): DY – LE (Not Follow)​

D + 8 = L, Y + 7 $$\neq$$ E​

Thus, correct option is (d).