单选题 Patty: Hello, could I speak to Mrs. Lee, please?
Betty: This is Betty Lee.
Patty: Oh, Betty, this is Patty Wong. Bill and I will be having a buffet party next Saturday, and we'd like you to join us.
Betty: We'd love to, Patty. ______
Patty: Oh, we're celebrating our tenth wedding anniversary.

• A. What time do you want us to come?
• B. What's the occasion?
• C. Who else are you inviting?
• D. How long will it be?