With the popularity of ______ cell phone, more and more people are addicted to it and do less and less face-to-face communication, which has become _______ widespread concern.

A．the; a

B．\; \

C．the; \

D．a; the

以下哪项最不可能在预备业务会议的议程中讨论（）

A.业务的目标和范围

B.所需的记录的客户人员

C.抽样计划和关键标准

D.预期的开始和结束日期