Due to external impacts，the project is canceled by the steering committee at an SPI of 0. 5. what should the project manager do next？
A、Perform an EVA to find whether the CV or the SV is the reason for the SPI of 0. 5
B、Proceed with closure process to transfer the project’s finished and unfinished deliverable to others
C、Nothing，when the project is officially closed by the steering committee, no closure processes required.
D、Conduct a root cause analysis to find the reasons for the cancellation of the project