Margaret mead's comparative study of sexual differences in three papua new guinea societies is important because it is among the first studies to make a distinction between biological and cultural

I believe the answer is biological sex and cultural gender.
Through her research, she found that the women in new guinea displayed more aggressive behavior compared to women in western civilization.
This bring up the question of wehter it's true that men are biologically more aggressive compared to women or it's just a constructed role.

The answer is c) protestant clergy