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

ABC2 : HIJ9 :: DEF5 : KLM12 :: OPQ16 : ?

VWX23

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

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

ABC2 : HIJ9 :: DEF5 : KLM12 :: OPQ16 : ?

THE LOGIC FOLLOWED HERE IS :

A → (+7) → H

B → (+7) → I

C → (+7) → J

2 → (+7) → 9

AND

D → (+7) → K

E → (+7) → L

F → (+7) → M

5 → (+7) → 12

SIMILARLY

O → (+7) → V

P → (+7) → W

Q → (+7) → X

16 → (+7) → 23