Which statement best explains how populations, rather than individuals, evolve over time through natural selection?

• A. Natural selection acts on individual differences, leading to changes in allele frequencies in a population over generations.
• B. Only populations that are geographically isolated can evolve.
• C. Populations evolve when individuals in a population decide to adapt to better suit their environment.
• D. Individual organisms evolve during their lifetime, and these changes are passed to the next generation.

Answer: (A)