You have been assigned to manage a construction project that is currently being initiated. Your company guidelines require that you make a rough order of magnitude estimate of both time and cost before you can finish initiating the project so that the sponsor(S) can allocate the final budget. What is the range of a rough order of magnitude (ROM) estimate?

A. -10% to +10%

B. -25% to +75%

C. -50% to +100%

D. -100% to +200%