Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.

CLAP, HLVP, HQVK, MQQK, ?

MVQF

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'