Why is it an evolutionary advantage to have genetic variation within a
population?

A. It increases a population's chance of surviving
predators, disease, and changing environments.
B. It increases birth rates, making the population more
likely to survive.
C. It causes more predators to be born, which increases
the death rate and prevents overpopulation.
D. It is not an evolutionary advantage; individuals get
along better when they have more in common.