6) P arkinson Ladders Company provides the following financial information: Income from operations Interest expense Gains/losses) on sale of equipment Net income Total assets at Jan. 1 Total assets at Dec 31 $400,000 47,000 3,000 350,000 2,600,000 3,400,000 Calculate return on investment based on the information given above. (Round your answer to two decimal places.) A) 15.38% B) 11.67% C) 13.33% D) 11.76%