Detailed Instructions: In this task, you will be presented with a question having multiple possible answers in Chinese language. And you should choose a most suitable option out of "A", "B", "C", "D", and "E" based on your commonsense knowledge.
Q: Question: 当他们跳过石头的时候，他们在哪里寻找新的石头？ 
 Options: A 车道 B 胆囊 C 采石场 D 河床 E 滩涂 
A:
D