Concept:Gender roles are not fixed by biology or genetics; they are created by society and learned through experience.Explanation:Society sets norms about how men and women should behave. These norms are taught from childhood through family, school, and media. For example, boys are often told to be tough and girls to be nurturing. Such expectations are not natural instincts. They are learned behaviours that become stereotypes over time. Innate behaviours, like a baby’s cry, are automatic and not learned. Biological or genetic factors determine sex differences, but they do not prescribe social roles. Gender roles are therefore shaped by culture, not by biology or heredity.Answer:A. Learned behaviour