问题补充：
—Thank you for carrying me to hospital, young man! It’s kind of you.
—. Helping others makes me happy.
A. Yes, please
B. No, thank you
C. You are welcome
D. No, you don’t have to
答案：
A. Yes, please
B. No, thank you
(答案→)C. You are welcome
D. No, you don’t have to
解析：Yes, please是的，请吧；No, thank you不，谢谢你；You are welcome不客气；No, you don’t have to不，你不必。句意：谢谢你送我到医院，年轻人！你太好心了。根据下文，帮助别人会让我很高兴。可知选C，最符合语境。
