Sapp Trucking's balance sheet shows a total of noncallable $45 million long-term debt with a coupon rate of 7.00% and a yield to maturity of 6.00%. This debt currently has a market value of $55 million. The balance sheet also shows that the company has 10 million shares of common stock, and the book value of the common equity (common stock plus retained earnings) is $60 million. The current stock price is $20.00 per share; stockholders' required return, r's, is 14.00%; and the firm's tax rate is 25%. The CFO thinks the WACC should be based on market value weights, but the president thinks book weights are more appropriate. What is the difference between these two WACCs? O a. 1.70% b. 2.02% c. 1.28% d. 1.49% e. 0.96%