Which of the Following Statements Accurately Refers to One of the Achievements

Which of the following statements accurately refers to one of the achievements of feminist anthropology in the last third of the twentieth century?

A) Beginning in the 1970s, anthropologists began to examine closely the ethnographic record to determine whether male dominance is a feature of all human societies.
B) Sherry Ortner argued that males were universally ranked higher than females because females were everywhere seen as "closer to nature" than males.
C) Studies of the roles of men and women within families demonstrated that the very idea of what constituted a family varied enormously, cross-culturally and historically.
D) All of the above are true.