参考答案：A

解析：[听力原文]
W: Oh look! There’s the guy we saw last week, playing football in the park! He looked great in his kit, remember
M: I don’t remember him. I’ve got a terrible memory for faces. I even have a hard time recognizing people I’ve been introduced to.
Q: What is the man’s problem

[一点即通] 此对话关键是对选项中A)短语by sight的理解，by sight意思是“凭外观，据外表”，对话中男士提到对人的面貌记性差，正好符合A)项。