Crow is a bird, usually black, of the genus corvus , having a strong conical beak, with projecting bristles; it has a harsh, croaking call while cuckoo is any of various birds, of the family cuculidae (from latin ), famous for laying its eggs in the nests of other species; but especially the common cuckoo, cuculus ...
My bad, totally messed up. answer is below mine.
The term can be understood by dividing the term into two. Gender which means tells whether a person is a male or female. Roles means the part or responsibilities that align with you. Put them together, we understand the term as the obligations of man and women in a society. General definitions that verify this is the answer in B. Answer to this problem is B.