Step Up Ladders Company provides the following financial information: Income from operations $280,000 Interest expense 46,000 Gains/(losses) on sale of equipment 2,900 Net income 231,100 Total assets at Jan. 1 2,600,000 Total assets at Dec.31 3,500,000 Calculate return on investment based on the information given above. (Round your answer to two decimal places.) O A. 9.18% OB. 8% O c. 7.58% OD. 10.77%