Which of the Following Situations Provides an Example of How

Which of the following situations provides an example of how the social categories of gender influence the biology of sex?

A) parents who refuse to let their three-year-old son paint his fingernails
B) how people react differently to two women who hold hands in public versus two men who hold hands in public
C) the decision to raise a male infant born with a small penis (e.g., a phallus measuring less than 2 centimeters in length) as a female
D) how a one-sex model of human bodies dominated thinking among ancient Greeks, but a two-sex model dominates current Western biological thought