The map shows the ranges for polar bears (blue) and brown bears (red). Areas in purple indicate where both bear types are found. Which statement best describes how the bears evolved to be found in these ranges?
A. Polar bears cannot live in areas of high sunlight, causing them to be found only in the northernmost regions, which caused the bear populations to diverge.
B. Brown bears lack the ability to swim and navigate water, which separated them from the polar bears, causing their populations to diverge
C. Ancestors to the polar bears were better suited for colder climates, while ancestors to the brown bears were better suited for slightly warmer climates, causing the bear populations to diverge.
D. Ancestors to the polar bears were better suited to eat fish and other meat while ancestors to the brown bears were better suited to eat berries and other plants, causing the bear populations to diverge.