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

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.

GAIN : HBKP :: ACHE : BD JG :: CAKE : ?

A.            DBNH

B.            DBMH

C.            DBNG

D.            DBMG

Sol:

Pattern follows here is: +1, +1, +2, +2.