Which of the following ratios appears on a common-size balance

Which of the following ratios appears on a common-size balance sheet? ,, I. Debt to asset ratio , II. Net working capital to total assets , III. Net profit margin,,A. I , II, III,B. I only,C. I and III,D. III only,,Proposed Answer: C.,,Explanation: Net Profit Margin is only shown on a balance sheet and not on a common-size balance sheet which compares balance sheet to income statement.,,Is this correct?