Four letter-cluster pairs have been given, out of which three are alike in some manner and one is different. Select the one that is differe…

Explanation

In INSPIRING : KMUOKQKMI, ABANDONED : CACMFNPDF and FACULTIES : HZETNSKDU the letters of the first word are changed by +2, −1, +2, −1 and so on. In CABALETTA : ABZBJFRUY this pattern is not followed, so it is different.