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.)

A) A → B (+1), B → D (+2)
B) C → E (+2), E → F (+1)
C) N → O (+1), O → Q (+2)
D) T → U (+1), U → W (+2)

In A, C, D pattern = +1 then +2.
In B pattern = +2 then +1.

Final Answer:
CEF

Final Correct Option:
(B)