What advantage is there in using ROI and/or RI as performance measures?

A)	ROI may increase when business expands if income does not increase in line with the new investment.

B)	A manager's bonus will increase when ROI decreases.

C)	Imputed costs that are added in the RI calculation, are not recognized in accrual accounting, and are therefore not included in the operating figure used in calculating ROI.

D)	RI is measured in absolute dollars but ROI is in percentages.

E)	RI and ROI are both single-period measures.