Which of the Following Statements About Countershading Is True

Which of the following statements about countershading is true?

A) Countershading is widespread among living mammals, but there are no known instances of it in dinosaurs.
B) Countershading helps obscure the shadow cast by an animal, making it harder for predators to see it.
C) Only large predators use countershading to blend into their surroundings so that their prey cannot see them.
D) Countershading cannot be inferred from the fossil record because skin and scale tissue is never preserved.