Select the term that will come next in the following series.
MN, NOP, PQRS, STUVW, ?
Answer & explanation
Correct answer: option 1

Explanation:
MN, NOP, PQRS, STUVW, ?
The logic followed here is :
M → (+1) → N → (+2) → P → (+3) → S → (+4) → W
N → (+1) → O → (+2) → Q → (+3) → T → (+4) → X
P → (+2) → R → (+3) → U → (+4) → Y
(Q) → (+2) → S → (+3) → V → (+4) → Z
(T) → (+3) → W → (+4) → A
(X) → (+4) → B
So, the letter-cluster that replaces the (?) to complete the series is "WXYZAB"