A family of white rabbits is transferred from a snow-filled ecosystem to a prairie. Which of the following adaptations would be most beneficial to the offspring of these white rabbits?

A.
longer and sharper claws
B.
darkening of the fur
C.
ability to jump higher
D.
increase in overall size

B. Darkening of the fur

Darkening of the fur would provide better camouflage for the white rabbits in the prairie environment, helping them avoid predators and increasing their chances of survival.