Apply rough estimates for a program. In cost estimating, a rough Order of Magnitude (ROM) is essentially a budgetary or planning figure serving a s a "rough preliminary value". Often, the government will ask the contractor for a ROM in order to decide whether to pursue a new endeavor of add a feature to an existing one.. Which of the following are valid program implications of the ROM? (Select three that apply) A. The more clarity the program manager (PM) provides up front to the contractor, the better. B. ROMs provide a fairly accurate forecast a they take factors such a s risks and assumption into account. C. ROMs are convenient as they must only be established and analyzed once. D. PMs should monitor ROMs closely as they are highly dynamics.