听力原文：M: Excuse me. Are you waiting to buy tickets？W: Yes, I am. So are all these peopl

听力原文：M: Excuse me. Are you waiting to buy tickets？

W: Yes, I am. So are all these people in front of me.

M: Have you been here long？

W: About 45 minutes. I've moved forward only 3 feet.

M: You're kidding.

W: Not at all. There was a couple up ahead of me who got very angry and finally they left. They said they'd been waiting for more than an hour.

M: Terrific. Does anyone know what's causing the delay？

W: Maybe there aren't enough people selling tickets this afternoon. Or maybe their computer is down.

M: I just hope they don't run out of tickets before I get up there.

W: That really would be annoying, wouldn't it？

M: I guess I should have come before lunch. Or has it been like this all day？

W: Apparently it has. In fact, before I came I tried calling to charge my tickets over th9 phone. just to avoid this long wait. But they're not taking phone orders, or checks, or credit cards. It's cash or nothing, and you have to come in person.

M: Well, here're two more hours before the ticket office closes. Tickets for a good concert are worth waiting for. So I think I'll just make myself comfortable.

What are the man and the woman doing？

A．Trying to telephone someone.

B．Attending a concert.

C．Waiting in line.

D．Canceling reservations.