A project manager advises the project sponsors of a significant project cost overrun. The sponsors want to know why they were not advised earlier of this situation. What should the project manager have done to address this issue prior to the sponsors' feedback?
A、Create a communication plan to address the needs of the project stakeholders
B、Invite the project sponsors to team meeting for regular updates
C、Add contingency to the project budget so overspend is absorbed into project costs
D、Cut back on project resources to the project to recover cost overrun as a matter of urgency