A project manager encounters a challenge to the budget. At the beginning of the project, they obtain budget approval of US$1 million broken down as follows.US$200,000 for material expense;US$100,000 for travel;US$100,000 for depreciation of capital.After the project starts, new requirements may incur an additional US$50,000 for labor Due to budget constraints, the project manager cannot obtain additional funds for the project.Since the project schedule is tight and cannot be delayed, what should the project manager do?
A、Negotiate with the sponsor to get enough budgeted before continuing the project.
B、Negotiate with the project team and get an advice before continuing the project.
C、Require more time to deliver the project.
D、Accept the budget as a risk and continue the project.