Four letter-cluster have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Answer & explanation
Correct answer: option 3
BUMD ⇒ B →(-7)→ U →(-8) → M →(-9) → D
WPHY ⇒ W →(-7)→ P →(-8) → H→(-9) → Y
GZSH ⇒ G →(-7)→ Z →(-7) → S→(-11) → H(ODD)
MFXO ⇒ M →(-7)→ F →(-8) → X→(-9) → O