【正确答案】 D

【答案解析】 [听力原文]
   W: Radisson Hotel. Joan Smith speaking. Can I help you?
   M: Hello, it's Donald Roach here, from Fox Autodesign. I'm calling from the stand at the auto exhibition because I need to make some last-minute changes to the arrangements you're fixing for us at the hotel.
   W: Right, let me just make a note of all the changes. Here we are. Starting with today, Tuesday, we've got 22 single rooms with shower or bath booked for Fox Autodesign staff for three nights, with 34 people booked in for dinner tonight at 8:00 in the Main Hall Restaurant. Is that right?
   M: Yes, we still want the 22 rooms. I think people will start arriving about 6:30, probably. It's the numbers for the dinner tonight that have changed, and the number of rooms we need for the next two nights, as more people are arriving from the States tomorrow.
   W: Well, I wonder if there will be a problem, but let's start with the dinner tonight. How many people will there be now?
   M: Can you fit in another nine, please? There will now be 43 for dinner.
   W: I'll let the restaurant know immediately. There's enough time to add the places, and I know there's space to get another table in the room. It would help to know if any of the extra people want a special diet. I've already got down that seven people are vegetarian.
   M: Yes, three of the new people are vegetarian too, so that's 10 now, but there aren't any special diets needed apart from that.
   W: That's no problem. It just helps if we can tell the kitchen in advance.
   M: Sure. Now about the number of rooms we need for the next two nights.
   W: Yes, you said you need more.
   M: Yes, four more staff members are flying in tomorrow. Can you fit them in?
   W: Let's see...Do they want singles with shower or bath, like all the others?
   M: Singles, ideally, but we may have to put them in doubles if that's all you've got.
   W: I'm just checking...I'm afraid I can't put them in singles, but I've got two double rooms with twin beds that they could have—both rooms have a bath and shower. How would that be?
   M: That's fine, I'm sure. So we'll then have 22 single rooms and two doubles with twin beds for tomorrow night—right?
   W: Yes, what about Thursday night then? Is that the same?
   M: Yes, everyone will be staying then too, so we'll need the same rooms as Wednesday.
   W: That's fine. I've got all that. Please call me as soon as possible if there are any more changes.
   M: Sure. By the way, can you confirm that there is Wifi in the double room and in the single room as well? You know, we will hold conferences in the hotel rooms during our stay there.
   W: Yes, we provide smart, fast and affordable Conference Wifi to our guests, single or double rooms alike. And the system has recently been upgraded for safety, speed and efficiency. Our staff will give you more instructions about it once you have checked in.
   M: That's great. Thanks. Bye.
   Why is the man making the telephone call?