You are the controller on your project. Your project manager has requested that you provide him with a forecast of project costs for the next 12 months. He needs this information to determine if the budget should be increased or decreased on this major construction project. In addition to the usual information sources, which of the following should you also consider?

A.
Cost estimates from similar projects

B.
The WBS

C.
Long-range weather forecasts

D.
Existing change requests