接受与拒绝邀请 — 英语选择题
题目
Anna: Hi, Ben! Can you come to my birthday party this Saturday afternoon?
Ben: I'd love to, but I'm afraid I can't. I have to visit my grandparents in the countryside.
Anna: That's too bad. Maybe next time!
根据对话内容，Ben对邀请的回应方式是：
A. 礼貌拒绝并说明原因
B. 欣然接受并表示感谢
C. 接受邀请但提出改期
D. 直接拒绝且没有解释