Biology

The correct answer is: A.It changes allele frequencies by favoring certain traits.

Explanation:

Selection affects Hardy-Weinberg equilibrium by favoring certain alleles (traits) that provide a survival or reproductive advantage. As a result, these advantageous alleles become more common in the population over time, causing a change in allele frequencies. This disrupts Hardy-Weinberg equilibrium, which assumes no selection is acting on the population.

The other options are incorrect because:

B.It ensures that th...