Froft center reiponsibitty reporting fot an service company inceme at a peree-t of revanues. The follewing quarerly income and eupense accounits pere previded from the trial balance as of Decamber 31 Deperment cenducte a variety of services for the company as a whole. The follawing additional informotion has been gathered: Thomas Railroad Company Divisional Income Statements For the Quarter Ended December 31 2. What is the profit margin of each region? Round to one decimal place. Identify the most successful region according to the profit margin. 3. What would you include in a recommendation to the CEO for a better method for evaluating the performance of the regions? a. The method used to evaluate the performance of the regions should be reevaluated. b. A better regional performance measure would be the return on investment (operating income divided by regional assets). c. A better regional performance measure would be the residual income (operating income less a minimal return on regional assets). d. None of these choices would be included. e. All of these choices (a,b&c) would be included