---Hi Henry. How are you?-A. How do you do? B. How are you? C. I’m fine thanks

问题补充：

---Hi, Henry. How are you?

---

A. How do you do? B. How are you? C. I’m fine, thanks

答案：

解析：句意：嗨，恒瑞。你好吗? 很好，谢谢。How do you do ? 是不相识的人初次见面时的打招呼用语，互说这句话。How are you? 你好吗？这是两个相识的人在一天中头次见面时的打招呼用语。要用I’m fine, thanks来应答，所以选C。