录音中菲奥娜对杰克说，“你从纽约回来了。”杰克回答说，“I’ve been doing market research there.”由此可知，杰克去纽约是为了做市场调查，因此A为正确选项。

【录音原文】  
F: Ah, Jacky! You’re back from New York.  
M: Yes, Fiona. I’ve been doing market research there.
F: I know. How did you get on?  
M: Well, what I saw in the States astonished me ... really! I think there’ll be a lot of demand for our new personal computers.