Three of the following four letter-clusters are alike in a certain way and one is different. Select the odd one.
Answer & explanation
Correct answer: option 2
AEIM = A → (+4) → E → (+4) → I → (+4) → M
SVZD = S → (+3) → V → (+4) → Z → (+4) → D (THIS IS ODD)
RVZD = R → (+4) → V → (+4) → Z → (+4) → D
CGKO = C → (+4) → G → (+4) → K → (+4) → O