Which of the following is the best explanation for melting? Circle or highlight the correct choice. A. Particles heat up, losing kinetic energy, and spread further apart so they are less attracted. B. Particles heat up, gaining kinetic energy, and spread further apart so they are less attracted. C. Particles cool down, losing kinetic energy, and get closer so they are more attracted. D. Particles cool down, gaining kinetic energy, and get closer so they are more attracted.