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

GAINS : SNIAG :: ANVIL : LIVNA :: INBOX : ?

XOBNI

Pattern followed is :

GAINS : SNIAG

GAINS :- write it in reverse order = SNIAG

&  ANVIL : LIVNA

ANVIL :- write it in reverse order = LIVNA

Similarly ,

INBOX : ?

INBOX :- write it in reverse order = XOBNI

XOBNI, is correct answer .

XOBNI