which environmental factor would likely lead to an increase in genetic variation in a population of…

which environmental factor would likely lead to an increase in genetic variation in a population of squirrels?\n an increase in predators\n an increase in available food\n an increase in forest fires\n an increase in pollution
Answer
Brief Explanations:
An increase in available food provides more resources for squirrels. With more resources, there is less intense competition for survival. This allows for a greater chance of different genetic traits being passed on as more individuals can survive and reproduce, increasing genetic variation. In contrast, an increase in predators, forest - fires, and pollution are stressors that usually lead to selection against certain traits and may reduce genetic variation.
Answer:
an increase in available food