Biology

The correct answer is: C.genetic drift.

Explanation:

Genetic drift is a chance occurrence that can significantly affect a population, especially when the population is small. It refers to random fluctuations in allele frequencies due to chance events, such as random deaths or reproductive success. In small populations, these random changes have a larger impact, which can negatively affect the population's genetic diversity and survival.

The other options are not directly related to random changes in allele frequency:

A.Mutati...