Constructive team roles include （）.

单项选择题You are in the close project process．You are engaged in the activity to settle and close some contract agreements established for the project．Which of the following activities are you into ？（）

A．Administrative closure
B．Contract closure
C．Project executing
D．Planning

单项选择题核实范围过程旨在（）。

A．正式验收可交付成果
B．审查项目范围文件的正确性
C．检查可交付成果的技术正确性
D．发现项目范围偏差，管理项目范围基准变更