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.

RUNZ : IGLC :: WZSE : ?

DBGX

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

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

THE LOGIC FOLLOWED HERE IS :

R → (OPPOSITE) → I → (SAME) → I

U → (OPPOSITE) → F → (+1) → G

N → (OPPOSITE) → M → (-1) → L

Z → (OPPOSITE) → A → (+2) → C

SIMILARLY

W → (OPPOSITE) → D → (SAME) → D

Z → (OPPOSITE) → A → (+1) → B

S → (OPPOSITE) → H → (-1) → G

E → (OPPOSITE) → V → (+2) → X