A、  B、  C、  B句子是提议下午就新政策召开会议的建议疑问句。应该理解Why don’t we…常用来表达建议。

Our product is going to be featured in an advertisement.
(A)I need all the best features.
(B)Production levels were low last month.
(C)Yes, i heard from our supervisor.

Why don’t we have a meeting about the new policy this afternoon?
(A)OK, I’ll see you tomorrow.
(B)Sure. Just let me know what time.
(C)I can send you the contact information.