In determining the dollar amount to use for operating assets in the return on investment (ROI) calculation, companies will generally use either net book value or gross cost of the assets. Which of the following is an argument for the use of net book value rather than gross cost?

A. It encourages the replacement of old, worn-out equipment.

B. It eliminates the depreciation method as a factor in ROI calculations.

C. It is consistent with how assets are reported on the balance sheet.

D.All of the above.