Answer and show work,

D

Explanation:

A is not correct as the lighter mouse are more visible, and are more likely to die. They can't reach reproductive age if dead.

B is not correct because lighter mice cannot be successful in finding food if easy prey for predators.

C is not correct because the question shows the predator being the variable that changed the population of lighter mice, not food.

the sun d the answer is sun

weathering is the answer.