a) Sex refers to biological differences between males and females, while gender refers to the social and cultural expectations associated with being male or female.
b) Sex and gender are the same thing.
c) Sex refers to the social and cultural expectations associated with being male or female, while gender refers to biological differences between males and females.
Answer: a) Sex refers to biological differences between males and females, while gender refers to the social and cultural expectations associated with being male or female.