Selected financial data for Surfer Co. is provided below: ($ in millions) Sales Interest expense Tax expense Net income Total assets (beginning of year) Total assets (end of year) Total liabilities (end of year) Total stockholders' equity (end of year) $940,000 3,000 21,000 54,000 900,000 820,000 600,000 220,000 What is the return on assets for Surfer Co.? Multiple Choice 6.9% 6.3% 6.0% 6.6%