信管网章节习题

The actual expenditure of a project to date is US$850,000, of a US$900,000 total project budget. The current earned value is US$750,000.What is the status of the project ?
A、US$100,000 over budget.
B、US$50,000 under budget.
C、US$100,000 under budget.
D、US$150,000 over budget.