Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
CLAP, HLVP, HQVK, MQQK, ?
Answer & explanation
Correct answer: option 4
Explanation:

Explanation:
CLAP, HLVP, HQVK, MQQK, ?
The logic followed here is :
C → (+5) → H → (0) → H → (+5) → M → (0) → M
L → (0) → L → (+5) → Q → (0) → Q → (+5) → V
A → (-5) → V → (0) → V → (-5) → Q → (0) → Q
P → (0) → P → (-5) → K → (0) → K → (-5) → F
So, the letter-cluster that replaces the (?) to complete the series is "MVQF'