Abraham,a 25-year-old law student,is heterosexual;his brother Chaim,a 21-year-old college senior,is homosexual.The brothers obviously differ in their

A) erotic plasticity.
B) sexual response cycle.
C) sexual orientation.
D) refractory period.

Sexual Orientation

An enduring pattern of emotional, romantic, or sexual attractions to men, women, both genders, neither gender, or another gender.

Heterosexual

Referring to a sexual orientation towards individuals of the opposite sex.

Homosexual

A term used to describe individuals who are physically, romantically, or emotionally attracted to people of the same gender.