（）management includes negotiating the terms and conditions in contracts and ensuring compliance with the terms and conditions, as well as documenting and agreeing on any changes or amendments that may arise during its implementation or execution.

A.Contract

B.Document

C.Communication

D.Risk

中国职工民主参与具有层次高、参与管理直接性强等特点的形式是（）。

A.职工代表大会制度

B.厂务公开制度

C.职工持股会

D.职工董事和监事制度