It is widely accepted that animals learn to do things because their certain acts lead to .

问题补充：

It is widely accepted that animals learn to do things because their certain acts lead to .

A. rewards

B. prize

C. awards

D. results

答案：

(答案→)A. rewards

B. prize

C. awards

D. results

解析：本题考查名词。reward为“奖赏”之意。句意：动物学做事情是因为他们一定的行为导致奖赏，已经被广泛的承认。