Which of the Following Statements Accurately Describes Cross-Cultural Studies of Gender

Which of the following statements accurately describes cross-cultural studies of gender?

A) Gender is universally divided between the mutually exclusive categories of "male" and "female" in cultures around the world.
B) Although "male" and "female" categories are the most common, many societies contain words for a third gender or third sex.
C) Only Western cultures contain the rigidly defined, opposite categories of "male" and "female."
D) Most societies place little emphasis on defining differences between males and females.