Greystone Inc. had the following data for 2019: Sales: $4,000; EBIT =$3,000; Net income =$700; Tax rate of 40% Stock price is $10 and Weighted average cost of capital (WACC) is 10\% For 2018 Total Net Operating Capital was $2,500 Using the data for Greystone, calculate the Debt Ratio (2 decimals): Select one: a. .23 b. .53 c. .81 d. Other number