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.

BRIGHT : THGIRB :: DANGER : REGNAD :: FOREST : ?

TSEROF

Pattern followed is :

BRIGHT : THGIRB

BRIGHT in reverse order = THGIRB

DANGER : REGNAD

DANGER in reverse order = REGNAD

Similarly ,

FOREST : ?

FOREST in reverse order = TSEROF

TSEROF , is correct answer .