During a project meeting, the team realizes that there is a cost reduction for one piece of equipment required for the project. The cost management plan has already been approved. What should the project manager do? 在一次项目会议期间，团队得知项目所需的一台设备的成本降低，成本管理计划已获得批准。项目经理应该怎么做？ ◑A.Move forward with the project without notifying the change control board (CCB)继续执行项目而不通知变更控制委员会（CCB） ◑B.Follow the change management plan and ask the CCB to approve the cost change遵循变更管理计划，并要求变更控制委员会批准成本变更 ◑C.Update the change management plan to include the cost change更新变更管理计划，以包含该成本变更 ◑D.Inform the CCB about the cost reduction and forward with the project将该成本降低事宜通知变更控制委员会，并继续执行项目
