参考答案: C
详细解析:
项目管理计划定义了如何执行、监控、收尾项目，它通过整体变更控制过程是进行控制、批准、更新。The project management plan defines how the project is executed，monitored and controlled ，and closed.it is progressively elaborated by updates ，and controlled and approved through the Perform Integrated（ ）process.
A. Cost Control
B. Schedule Control
C. Change Control
D. Risk Control
参考答案: C
详细解析:
项目管理计划定义了如何执行、监控、收尾项目，它通过整体变更控制过程是进行控制、批准、更新。