Four sets of letters are given, out of which three are congruent and one is incompatible. Select the inconsistent one.

Correct option is C

1. (a) ACFK
· A → C (+2)
· C → F (+3)
· F → K (+5)
· Pattern: +2, +3, +5
2. (b) MORW
· M → O (+2)
· O → R (+3)
· R → W (+5)
· Pattern: +2, +3, +5 (Same as ACFK)
3. (c) YADJ
· Y → A (+2) (Inconsistent as it should be a forward shift)
· A → D (+3)
· D → J (+5)
· Pattern: Irregular, as Y → A doesn’t follow the previous trend
4. (d) JLOT
· J → L (+2)
· L → O (+3)
· O → T (+5)
· Pattern: +2, +3, +5 (Same as others)
Since (c) YADJ does not follow the +2, +3, +5 pattern in a logical forward sequence, it is the inconsistent one.