Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the odd letter-cluster.
Answer & explanation
Correct answer: option 1
THE LOGIC;
1) WC;
W → (+6) → C
2) PW,
P → (+7) → W
3) FM,
F → (+7) → M
4) QX,
Q → (+7) → X
Thus, WC is the odd one.