Biology

The correct answer is: D.Changes in allele frequencies due to genetic drift.

Explanation:

In a population with no migration, genetic drift is the most likely process to cause changes in allele frequencies. Genetic drift refers to random fluctuations in allele frequencies, particularly in small populations, and it can lead to a loss of genetic diversity over time. These changes happen due to chance rather than selective pressures or migration.

The other options are less likely because:

A...