What Does Research by Margaret Mead and George Murdock Show

What does research by Margaret Mead and George Murdock show?

A) Nature is more powerful than nurture when it comes to gender differences.
B) Nurture is more powerful than nature when it comes to gender differences.
C) Nature and nurture are both powerful when it comes to gender differences.
D) Overall, societies consistently define certain tasks as feminine or masculine.
E) Gender is too consistent to be a simple expression of culture.