Answer:
The correct answer is letter "A": can be used to estimate the projected cost of completing the project.
Step-by-step explanation:
The Cost Performance Index or CPI measures the projected cost of work completed compared to the current cost spent. The CPI represents a ratio of earned value to actual cost. If the CPI is greater than one, the project is under budget. When the CPI equals one the planned and actual costs are equal. If the CPI is higher than one, the project is over budget.