A small population of mice is released into a meadow. Many but not all of the mice survive and reproduce, and this pattern conti

nues for many generations of mice. According to Darwin's ideas about evolution, which of these conditions is necessary for natural selection to occur on the mouse population? A. Any mutations in the population do not affect the fitness of a mouse. B. The meadow provides unlimited resources to support the mice. C. Traits that affect the survival of the mice vary among individual mice. D. The environment of the meadow remains about the same from year to year.