The project budget is proving to be inaccurate. The SPI is 1.1, the team has had negative deviation from the activity attributes, and the sponsor has inserted herself on the change control board. What is the best thing for the project manager to do ?
A、Try to encourage the sponsor to remove herself from the change control boad.
B、 Re-compute the project schedule.
C、 Re-estimate the activity attributes.
D、 Calculate the cost performance index.