________ can be defined as the traits making up masculinity and femininity.

A) Sex
B) Gender
C) Gender identity
D) Sexual identity

Gender refers to the societal and cultural expectations and characteristics associated with being male or female, while sex refers to biological characteristics such as chromosomes, hormones, and reproductive organs. Gender identity refers to an individual's personal sense of being male, female, or something else entirely. Sexual identity refers to an individual's romantic and/or sexual attraction to others. The traits making up masculinity and femininity are typically associated with gender expectations and norms.