Question: Following is the financial information of Optimum Solvers Inc. for the last financial year: Line Item Description Amount Operating Income 172,800 Sales $2,160,000 Average Operating Assets $720,000 Calculate its margin ratio and turnover ratio. a. Margin ratio is 9%; turnover ratio is 3 b. Margin ratio is 8%; turnover ratio is 3 c. Margin ratio is 8%; turnover ratio is 4 d. Margin ratio is 9%; turnover ratio is 4