In the following question, some groups of letters are given, all of which, except one, share a common similarity. Choose the odd one out.

Choose the odd one out.

A.

XUW

B.

DAC

C.

PMN

D.

HEG

E.

TQS

Correct answer is C

In all other groups, the second letter is moved 2 steps forward to obtain the third letter which then is moved 1 step forward to obtain the first.