[Solved] What is the pH of a 0.040 M HClO<sub>4</sub> solution? A)0.040 B)0.080 C)1.40 D)12.60 Kin Selection: The idea that natural selection led to greater tendencies to help close kin than to help those with whom we have little genetic relationship. Mating Strategies: Approaches to mating that help people reproduce successfully. People prefer different matingstrategies depending on whether they are thinking about a short-term pairing or a long-termcommitment Playboy Centerfolds: Features in Playboy magazine showcasing nude or semi-nude photographs of women, often considered iconic in the history of adult entertainment. Physical Attractiveness: The degree to which a person’s physical traits are considered aesthetically pleasing or beautiful by others.