Three of the following four letter-clusters are alike in a certain way and one is different. Find the odd one out.

Options

A. GHTR
B. CKXP
C. AEZV
D. FJUQ

Answer

A

Explanation

All options except A are in such a way that the difference between 1st and the 2nd term in the alphabetic order is same as the difference between 3rd and 4th term (Please elaborate taking their positions w.r.t the english alphabetical series, but in option A there is no such pattern.
Therefore, option A is the odd one out of the 4 options.