Biology

The correct answer is: D.Individuals must mate randomly.

Explanation:

In a population that is in Hardy-Weinberg equilibrium, several conditions must be met to maintain genetic stability:

A.Mutations occur: Mutations would introduce new genetic variation, disrupting equilibrium.

B.Natural selection must be occurring: If natural selection were happening, it would favor certain alleles, causing changes in allele frequencies, which violates the Hardy-Weinberg equilibrium.