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The required rate of return used in the residual income calculation to evaluate a potential investment in a subunit, should be the O A. minimum acceptable return the company seeks on its investment in the subunit B. weighted cost of capital for the firm's competition OCmaximum retum target for the firm's investments D. accounting (under GAAP) cost of capital related to the project as recorded in the general ledger Return on investment can be increased by O A. increasing return on sales O B. increasing current assets O c. increasing the debt portion of the capital D. decreasing revenues