According to men and women fill complementary gender roles and this arrangement benefits society.

According to functionalism, men and women fill complementary gender roles and this arrangement benefits society. Functionalism is a theory that believes mental states are built the way they are simply by their functional role. It is believed that they have very casual relations to the other mental states a person can have, many sensory inputs, and an array of behavioral outputs.

B
Explanation:
Holds the idea that each individual person decides what is right or wrong for themselves. A popular notion attached to subjective relativism is that "What's right for you may not be right for me."