PLEASE HELP! GIVING BRAINLIEST Which statement best describes evolution in a population?

A. It is a change in how common a certain genetic trait of a species is from one generation to the next.
B. It is a gene for a trait that helps an individual reproduce more times during its life.
C. It is a process by which an individual with a helpful trait produces many offspring with the same trait.
D. It is a trait that helps an organism survive longer and produce more offspring.