Three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? The odd one out is not based on the number of consonants/vowels or their position in the letter cluster

Options
a) DHK
b) BFJ
c) EIM
d) IMQ

Solution

DHK : 4-8-11
BFJ: 2-6-10
EIM: 5-9-13
IMQ : 9-13-17
Pattern in (3) letter cluster
+4, +4,
In DHK pattern +4, +3
Therefore DHK is odd

Correct Answer : DHK