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.

GAP : EYN :: MAD : KYB :: FILE : ?

DGJC

Pattern followed is :

GAP : EYN

G - 2 = E , A - 2 = Y , P - 2 = N

MAD : KYB

M - 2 = K , A - 2 = Y , D - 2 = B

Similarly ,

FILE : ?

F - 2 = D , I - 2 = G , L - 2 = J , E - 2 = C

DGJC  , is correct answer .