While the project is being completed, management requests a change. What is the FIRST thing the project manager should do? ( ) A. Comply with the request if possible. B. Obtain a complete understanding of the scope of the change. C. Teel the customer that a change will be coming. D. Ask the team to accept the change. 在完成项目过程中, 管理层提出一项变更。 这时项目经理应该做到第一件事是什么? ( )