You are the project manager for a railroad construction project. Your sponsor has asked you for a forecast for the cost of project completion. ?

Answer: AExplanation: Forecasting is a cost monitoring tool that helps you predict how much more money you'll need to spend on the project. So which of the cost metrics would you use to do that? There are two useful numbers that you can use for forecasting. One of them is called Estimate to Complete (ETC), which tells you how much more money you'll probably spend on your project. And the other one, Variance at Completion (VAC), predicts what your variance will be when the project is done.