A.Do you like one?B.What about you?C.Would you like one?

【答案】C

【解析】

当你想问对方是否想要一个时通常用一般疑问句。Do you like one?意思是“你喜欢吗？” What about you?意思是“你呢？”Would you like one?意思是“你想要一个吗？”故选C。