Select the letter-Cluster that can replace the question mark(?) in the following series.
ACZ, EGV, HJS, JLQ, ?
Answer & explanation
Correct answer: option 4

Explanation:
ACZ, EGV, HJS, JLQ, ?
The logic followed here is :
A → (+4) → E → (+3) → H → (+2) → J → (+1) → K
C → (+4) → G → (+3) → J → (+2) → L → (+1) → M
Z → (-4) → V → (-3) → S → (-2) → Q → (-1) → P
So, the letter-cluster that replaces the (?) to complete the series is "KMP"