[Solved] A product line's contribution margin represents its contribution to paying off variable costs and to generating a profit. Sexual Interest: Sexual interest refers to a person's desire or attraction toward others, which can vary in intensity and target across the spectrum of sexuality. Erotic Plasticity: Refers to the degree to which an individual's sex drive can be changed by societal or environmental factors. Same-Sex Attraction: Romantic or sexual attraction towards individuals of the same sex. Sex Drive: The human sexual desire or libido, influencing individuals' behavior towards sexual activities and relationships.