Based on the English alphabetical order, three of the following four letter-clusters arealike in a certain way and thus form a group. Which letter-cluster DOES NOT belong tothat group? (Note: The odd one out is not based on the number of consonants/vowelsor their position in the letter-cluster.)

Logic: 1st letter + 5 = 2nd letter and 2nd letter + 5 = 3rd letter

Now, we check each options.

Option (a): QVA (Follow)

Q + 5 = V, V + 5 = A​

Option (b): GLQ (Follow)​

G + 5 = L, L + 5 = Q

Option (c): YDI (Follow)​

Y + 5 = D, D + 5 = I

Option (d): NTY (Not Follow)​

N + 5 $$\neq$$ T, T + 5 = 7​

Thus, correct option is (d).