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QUESTION 3 All of the following statements are correct about controllable costs except all costs are controllable at some level of responsibility within a company. all costs are controllable by top management. fewer costs are controllable as one moves up to each higher level of managerial responsibility. costs incurred directly by a level of responsibility are controllable at that level. QUESTION 13 A distinguishing characteristic of an investment center is that revenues are generated by selling and buying stocks and bonds. interest revenue is the major source of revenues. the profitability of the center is related to the funds invested in the center. O it is a responsibility center which only generates revenues