A project manager believes that modifying the scope of the project may provide added value service for the customer．The project manager should______．

A．assign change tasks to project members

B．call a meeting of the configuration control board

C．change the scope baseline

D．postpone the modification until a separate enhancement project is funded after this project is completed according to the original baseline

政府调控宏观经济时，通常使用的货币政策工具有( )。

A．存款准备金率

B．转移支付

C．公开市场业务

D．再贴现率

E．官方储备