One common way to compute estimated at completion (EAC) is to take the project budgeted-at-completion and ______ .

A) divide it by the schedule performance index
B) multiply it by the schedule performance index
C) multiply it by the cost performance index
D) divide it by the cost performance index

投影法通常可分为（）个大类。

A.一

B.两

C.三

D.四