[Solved] Marginal revenue is defined as A) the value of a firm's sales. B) the total revenue from the total amount the firm sells. C) the change in total revenue that results from a one-unit increase in the quantity sold. D) total revenue divided by the total quantity sold. Sexual Masochism: A sexual preference for experiencing pain, humiliation, or suffering during sexual activity. Frotteurism: A paraphilic interest focused on touching or rubbing against a non-consenting person, often in crowded places. Voyeurism: A psychological disorder characterized by gaining sexual pleasure from observing unsuspecting individuals who are naked, in the process of disrobing, or engaging in sexual activities. Frotteurism: A paraphilic disorder characterized by an intense sexual interest in touching or rubbing against a non-consenting person, often in crowded places.