The treasury operation of Douglas Co. has provided the following information to Business Development so they can estimate their Cost of Capital (Overall or Weighted Average)for applications in appropriation requests: Cost of Debt Pre-tax 6% Marginal Tax Rate 40% Effective Tax Rate 20% Cost of Equity (Stockholders Required Return) 15% Cost of Capital 11.2% What is Douglas Co’s Debt to Capital Ratio? a. 67% b. 63% c. 33% d. 37% e. none of the above