【单选题】

Speaker A: Hello, is that Steve I'm stuck in a traffic jam. I'm afraid I can't make it before seven o'clock.Speaker B: ______
A．OK, but I still hope you'll try your best to arrive on time.

B．Yes. The traffic is very heavy because it's the rush hour.
C．Why don't you leave home a bit earlier
D．Never mind. I'll be here waiting for you.