In actual practice, managers frequently use the: I. average accounting return method because the information is so readily available II. internal rate of return because the results are easy to communicate and understand III. discounted payback because of its simplicity IV. net present value because it is considered by many to be the best method of analysis

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Give typing answer with explanation and conclusion  5. Which of the following statements is correct?   A-- All the answers are correct.   B-- A more direct method of calculating the DOL is to use the following equation is DOL = (Sales - Variable Costs)/EBIT.   C-- Because the amount of debt is determined by managerial choice, the business risk that a firm faces is also determined by management.   D-- Fixed costs are those costs that are expected to change at the same rate as the firm’s sales.   E-- If a firm’s operating costs are all variable, then any variation in sales will be less than the variation in EBIT.