Which of the following describes a scenario that would result in the phenotypic change shown in the graph?

A) A fish that has mouth parts adapted to eat moderately sized prey is introduced into a lake in which there are only large and small prey.

B) A population of mice live on the ground and in short trees. An invasive, tree-dwelling snake that preys on the mice is introduced into the area.

C) Climate change-induced warming of arctic tundra reduces average snow cover that lighter-colored arctic
foxes rely on for camouflage. Darker-colored arctic foxes are better suited to the exposed moss and grass habitat.

D) House sparrows that lay smaller-than-average clutches of eggs produce fewer viable offspring, while larger-than-average clutches of eggs result in malnourished chicks that have a higher mortality.