英语阅读理解http://www.***.com/p-018966798813.html64题为什么不选b而选c

第三段的第二句话,说“Then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned response with clear sign of pleasure.”
这句话的改写版本就是B选项.
至于C选项.首先C选项说“without being given milk”.Papousek没有做不给牛奶的实验.Papousek是给牛奶,但是孩子不喝了.Papousek如果不给牛奶,就要给亮光.
其次,不一定是“simple”movements.孩子也有可能做复杂的的动作,只要是learned.