A project sponsor takes great care to develop the benefit analysis and scope with the user/client. The assigned project manager later completes the project on time and under budget. What should the project sponsor do to assure the user/client that the final deliverable has achieved the desired objectives? 项目发起人非常注意与用户/客户一起制定效益分析和范围。任命的项目经理后来按时按预算完成项目。项目发起人应该如何向用户/客户确保最终可交付成果达到预期目标？ ◑A.Refer to the work breakdown structure (WBS) to confirm that all work packages were successfully completed.查阅工作分解结构（WBS）确认所有工作包都已经完成。 ◑B.Point out to the user/client that since schedule and budget requirements were met, the project is a success.向用户/客户指出，由于满足了进度计划和预算要求，该项目取得成功。 ◑C.Ask the assigned benefits owner to provide their feedback in a written report for verification.要求分配的效益负责人在书面报告中提供他们的反馈以进行验证。 ◑D.Provide to the user/client a list that was used at the end of the project indicating all items addressed.向用户/客户提供在项目结束时使用的一份清单，列出所有已解决的事项。
