uring a project review meeting, the project team member working on activity AD advises the project manager that it will take three more days to complete the activity. The organization's senior manager asks the project manager to find ways to deliver the project according to the original baseline plan, even though it may need additional budget. What should the project manager use to meet the senior manager's needs?

A、Use fast tracking

B、Use fast crashing

C、Apply critical chain methodology

D、Apply leads and lags