Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.

GTQ : JVP :: SDK : ?

VFJ

A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

******************************************

GTQ : JVP :: SDK : ?

The  logic followed here is :

G → (+3)→ J

T → (+2)→ V

Q → (-1)→ P

SIMILARLY

S → (+3)→ V

D → (+2)→ F

K → (-1)→ J