Project Managers Typically Use ________, Also Called Analogous Estimating or the ______

Project managers typically use ________, also called analogous estimating or the ______ method when there is a past history of similar projects and rough-cut estimates are needed for strategic purposes two-to-five years out because, as estimating methods go, it is faster and less expensive.

A) top-down, apportion
B) bottom-up, range estimating
C) bottom-up, learning curve
D) top-down, phase estimating
E) top-down, range estimating