Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster 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 - 3 = 2nd letter, 2nd letter - 5 = 3rd letter, 3rd letter - 2 = 4th letter

Now, we check each options.

Option (a): TQLJ (Follow)

 T - 3 = Q, Q - 5 = L, L - 2 = J

Option (b): JGBZ (Follow)​

J - 3 = G, G - 5 = B, B - 2 = Z

Option (c): ROIH (Not Follow)​

R - 3 = O, O - 5 $$\neq$$​ I, I - 2 $$\neq$$​ H

Option (d): BYTR (Follow)​

B - 3 = Y, Y - 5 = T, T - 2 = R

Thus, correct option is (c).