下面哪种情况发生了学习? Which of the following situation produces learning?
A.小李从亮处走进暗室，视力显著提高 Someone's eyesight improves significantly when he walk into a dark room from light area
B.小明喝酒以后脾气变得暴躁 Someone becomes grumpy after drinking
C.大猩猩模仿游人吃饼干 The gorilla imitate visitors to eat biscuits
正确答案是C