A project team has been arguing for days about the correct way to complete a high level design. This has caused the SPI to fail to 0.89 and has a CPI of 0.9. If the project manager tees the team “we will schedule this discussion for our team meeting next week”. The project manager is ______ .

A．using earned value

B．compromising

C．increase costs even further

D．withdrawing

猫:老鼠

A．警察:小偷
B．闹钟:牙刷
C．手机:毛巾
D．面包:棉花