[Solved] A study by labor economists Hamermesh and Biddle found that A)shorter-than-average men earn more than shorter-than-average women, all else equal. B)above-average looking people earn more than average-looking people, all else equal. C)shorter women earn more than taller women, all else equal. D)All of the above are correct. Birth-Order Effect: The theoretical impact that a person's rank by age among siblings has on their personality, intelligence, and behavior. Sexual Orientation: A persistent attraction pattern that is emotional, romantic, or sexual towards men, women, both, neither, or a different gender. Natural Selection: A process in evolutionary biology where organisms with traits better suited to their environment are more likely to survive and reproduce, thus passing those traits on to future generations. Erotic Plasticity: The degree to which an individual's sex drive, sexual preferences, and sexual identity can change throughout their lifetime.