A project is 70 percent through project execution when a new sponsor requests a change. Although the former sponsor has provided verbal approval of the deliverables, the new sponsor is unhappy with them and asks that several be redone.
What should the project manager have done to prevent this?


A. Obtained additional approval from the client to ensure the changes remain valid
B. Documented the approval for each deliverable with the former sponsor
C. Implemented formal change control procedures
D. Followed procedures outlined in the quality management plan