—What did Kate say just now?

—She asked _________.

A．who has been to the USA in our class

B．what was wrong with my computer

C．when did China become a member of the World Trade Organization

D．that China had successfully held the Olympic Games

目前，国内有些寿险公司已着手在不同地区建立后援中心和数据管理中心，其功能之一是建立，最大限度化解风险及可能造成的危机（）

A.灾难备份系统

B.风险转嫁系统

C.风险识别系统

D.风险监控系统