Select the option that is related to the fifth letter-cluster in the…

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

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EACH : AEHC :: GAME : AGEM :: IDOL: ?

The  logic followed here is :

FIRST AND SECOND INTERCHANGED WITH EACH OTHER

THIRD AND FOURTH INTERCHANGED WITH EACH OTHER

AS

E → (INTERCHANGED WITH SECOND )→ A

A → (INTERCHANGED WITH FIRST ) → E

C → (INTERCHANGED WITH FOURTH )→ H

H → (INTERCHANGED WITH THIRD )→ C

AND

G → (INTERCHANGED WITH SECOND )→ A

A → (INTERCHANGED WITH FIRST ) → G

M → (INTERCHANGED WITH FOURTH )→ E

E → (INTERCHANGED WITH THIRD )→ M

SIMILARLY

I → (INTERCHANGED WITH SECOND )→ D

D → (INTERCHANGED WITH FIRST ) → I

O → (INTERCHANGED WITH FOURTH )→ L

L → (INTERCHANGED WITH THIRD )→ O