听力原文：M: Hi, honey. I'm stuck in traffic. There has apparently been a big accident up a

head. We are just not moving.

W: That's too bad. Where are you？

M: I'm on the Garden City expressway near the sport stadium. I was on my way to drop off some samples at a new client's office and then I was going to pick up Billy from kindergarten. But now I'm afraid I won't be able to get there on time. Is there any chance you could get away early？

W: Should be fine.

What are the speakers mainly discussing？

A．A problem caused by traffic jam

B．The time to meet a new client

C．The place to drop off the samples

D．The way to get to the kindergarten