Concept:Gender is determined by societal roles and expectations, not by biology or medicine alone.Explanation:Gender refers to the psychological, social, and cultural attributes that society assigns to being male or female. It includes roles, behaviors, and expressions that are considered appropriate for each sex. These are learned through social institutions such as family, friends, school, and media. Gender roles differ across cultures and can change over time within the same culture. Unlike sex, which is biologically determined, gender is shaped by social factors. It is not fixed or binary; some people identify outside the male–female framework. Hence, gender is dominantly a social construct—built and maintained by society rather than by biology, medicine, or arbitrary choices.Answer:B. social