Biology

The correct answer is: B.One allele provides a survival advantage over others.

Explanation:

When one allele provides a survival or reproductive advantage over others, natural selection acts on the population, favoring individuals with that advantageous allele. This changes the allele frequencies over time, disrupting Hardy-Weinberg equilibrium, which assumes no selection.

The other options are incorrect because:

A.All alleles have equal survival and reproductive success: This condition supports Hardy-Weinberg equilibrium, as no allele is favored over another, meaning selection is not acting to al...