It was ______ his office.

A．not until the rain stopped did he leave

B．not until did the rain stop that he left

C．not until the rain stopped when he left

D．not until the rain stopped that he left

境内某公司与香港某公司签约进口斯里兰卡产的咖啡豆100吨，直接由斯里兰卡运抵上海，成交价格CIF上海100美元/吨。设1美元=7元人民币，最惠国税率为6%，普通税率为17%，亚太贸易协定税率为4.5%，东盟协定税率5%，为应征进口关税税额为()

A.0

B.3150元人民币

C.3500元人民币

D.11900元人民币