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.

JST : HPX :: PWJ : ?

NTN

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

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

JST : HPX :: PWJ : ?

The  logic followed here is :

J → (-2)→ H

S → (-3)→ P

T → (+4)→ X

SIMILARLY

P → (-2)→ N

W → (-3)→ T

J → (+4)→ N