A company has the following optimal capital structure: Source Long-term debt Preferred stock Common stock Book Value $100,000,000 $20,000,000 $80,000,000 The weighted average cost of capital (WACC) is the correct answer. O less than 9.0% Ogreater than or equal to 9.0% but less than 11.0% greater than or equal to 11.0% but less than 13.0% greater than or equal to 13.0% but less than 15.0% greater than or equal to 15.0% Market Value $100,000,000 $25,000,000 $135,000,000 Cost 6.8% (after tax) 10.0% 13.0% Choose the range that includes