Margaret Mead Spent Much of Her Career Documenting the Ways

Margaret Mead spent much of her career documenting the ways in which other cultures had gender roles that differed, sometimes radically, from those of twentieth-century America. Why does this matter?

A) It shows that the American version of gender roles is the most advanced in the world.
B) It shows that aggression is patterned by biological factors, which demonstrates that there is an essential unity to each category, male and female.
C) It shows that the meaning of masculinity and femininity differs in different societies, which demonstrates that our version of gender is not naturally occurring.
D) It shows that the physical environment determines gender.
E) It shows that gender is either male or female from birth to death and that there are no other options.