The kit fox and red fox species are closely related. The kit fox lives in the desert, while the red fox inhabits forests. Ear size and fur color are two differences that can be observed between the species. An illustration of these two species is shown below. Which statement best explains how the difference between these two species came about? (1) Different adaptations developed because the kit fox preferred hotter environments than the red fox.
(2) As the foxes adapted to different environments, differences in appearance evolved
(3) The foxes evolved differently to prevent overpopulation of the forest habitat
(4) The foxes evolved differently because their ancestors were trying to avoid competition.