Respuesta :

Descent with modification in biological organisms ; or a change in gene frequency in a population of organisms through time.
Pls Mark me as the brainliest!

Answer:

A

Explanation: A,  because the foundation of biological evolution is changes in gene frequency in a population occur from one generation to the next. Mutation, migration, genetic drift, and natural selection along with sexual reproduction result in genetic variation or changes in gene frequency.