A project with a firm fixed price (FFP) contract has reached its final milestone. The project manager is confident with the final product and endorses it to the client. After a week, the sponsor informs the project manager that the client is filing a lawsuit against their firm for the product they endorsed.What should the project manager have dong to avoid this situation? 一个采用固定总价（FFP）合同的项目已经到达其最终里程碑，项目经理对最终产品充满信心，并向客户背书该产品，一周后，项目发起人通知项目经理，客户正在针对其所认可的产品向他们公司提起诉讼。若要避免这种情况，项目经理事先应该做什么? ◑A.Validated the number of work hours charged by the project team to the client确认项目团队向客户收费的工作小时数 ◑B.Retested the product before endorsing it to the client向客户批注该产品之前重新测试该产品 ◑C.Spent time with the client to understand the project’s requirements花时间与客户一起了解项目的需求 ◑D. Requested a formal written notice from the client that the contract was completed要求客户正式书面通知合同已经完成
