The book, which is a useful guide for today's young people, deals with many questions and problems that face them at school and at home as well as in society.

A．are faced

B．confront

C．in opposition

D．meet

押品管理是指押品的受理、审查、评估、权利设立、监控、返还与处置等一系列活动。下列选项中，属于押品管理所应遵循的原则的有（）。

A.合法性原则

B.有效性原则

C.审慎性原则

D.一般化原则

E.平衡制约原则