1.The Board of Directors is dissatisfied with last year's ROE of 15%. If the profit margin and asset turnover remain unchanged at 8% and 1.25 respectively, by how much must the total debt ratio increase to achieve 20% ROE? A) Total debt ratio must increase by .5. B) Total debt ratio must increase by 5. C) Total debt ratio must increase by 16.67%. D) Total debt ratio must increase by 33.3%. Please explain it perfectly clear step-by-step. Thanks