【正确答案】 A

【答案解析】[听力原文]
   W: Dr. Carter's Office.
   M: Yes, I'd like to make an appointment to see Dr. Carter, please.
   W: Is this your first visit?
   M: Yes, it is.
   W: Okay. Could I have your name please?
   M: Yes. My name is Ronald Schuller.
   W: And may I ask who referred you to our office?
   M: Uh, I drove past your office yesterday.
   W: Okay. How about the day after tomorrow on Wednesday at 4:00 p.m.?
   M: Uh. Do you happen to have an opening in the morning? I usually pick up my kids from school around that time.
   W: Okay. Um ... how about Tuesday at 8:00 a.m. or Thursday at 8:15 a.m.?
   M: Uh, do you have anything earlier, like 7:30?
   W: No. I'm sorry.
   M: Well, in that case, Thursday would be fine.
   W: All right. And what's the nature of your visit?
   M: Well, to tell you the truth, I fell from a ladder two days ago while painting my house, and I sprained my ankle when my foot landed in a paint can. I suffered a few scratches on my hands and knees, but I'm most concerned that the swelling in my ankle hasn't gone down yet.
   W: Well, did you put ice on it immediately after this happened?
   M: Well, yeah. I just filled the paint can with ice and ...
   W: And so after you removed the paint can ... Sir, sir, Mr. Sehuller, are you still there?
   M: Well, that's part of the problem. Uh, the paint can is still on my toot.
   W: Look, Mr. Schuller. Please come in today. I don't think your case can wait.
   From the conversation, how did the man probably find out about Dr. Carter?
细节推断题。对话中男士提到I drove past your office yesterday，他开车经过了办公室。故选A。