A project manager and a project sponsor are having a dispute during contract closeout. What document is the basis of agreement between the project manager and the project sponsor when defining project completion? 项目经理和项目发起人在合同收尾期间发生争议。在确定项目完成时，哪一份文件是项目经理和项目发起人之间协议的依据？ ◑A. Accepted deliverables验收的可交付成果 ◑B.Project scope statement项目范围说明书 ◑C.Project management plan项目管理计划 ◑D.Project charter项目章程
