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' ye moved forward a total of about 3 feet in that time.

M: You' re kidding.

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

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

W: If so, no one has let us know. It could be that there aren't enough people selling tickets this afternoon. Or maybe their computer is down. I' m sure the concert hash' t been cancelled.

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 the 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, there' 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．Waiting in line.

C．Canceling reservations.

D．Attending a concert.