Which of the Following Statements About Genetic Variation Is Accurate

Multiple Choice

Which of the following statements about genetic variation is accurate?

A) Genetic variation is created by the direct action of natural selection.
B) Genetic variation arises in response to changes in the environment.
C) Genetic variation must be present in a population before natural selection can act upon the population.
D) Genetic variation tends to be reduced when diploid organisms produce gametes.