Why Did Anthropology Pay Little Attention to Women Prior to the 1970s

Why did anthropology pay little attention to women prior to the 1970s? All of the following are correct except:

A) Anthropologists assumed that men's activities were political and more important than women's activities,which were domestic.
B) Many anthropologists assumed that men represented women as well and there was no need to study these as separate genders.
C) The majority of practicing anthropologists was male and had little access to working with women in other societies.
D) Anthropologists were all male and there were no women available to study other women.
E) Men's roles were much more public and were more easily studied.