[Solved] For a monopolist: A) price equals average total cost. B) price is above marginal revenue. C) marginal revenue equals zero. D) marginal cost equals zero. E) average total cost equals marginal cost. Genetic Influences: Effects on the phenotype or characteristics of an organism due to the expression of genes inherited from its parents. Sexual Orientation: A lasting pattern of attraction that can be emotional, romantic, or sexual toward men, women, both genders, neither gender, or a different gender, coupled with a personal identity that aligns with these attractions. Refractory Periods: Phases following certain physiological processes (e.g., nerve impulse transmission, muscle contraction) during which a second response cannot be triggered. Erotic Stimuli: Visual, auditory, or tactile inputs that elicit sexual arousal or desire.