Billick Brothers is estimating its WACC. The company has collected the following information: Its capital structure consists of 24 percent debt and 76 percent common equity. The company has 11-year bonds outstanding with a 8.3 percent annual coupon that are trading at par. The company's tax rate is 31 percent. The risk-free rate is 4.7 percent. The market risk premium is 3.2 percent. The stock's beta is 1. What is the company's WACC? O 7.38% 7.88% 6.88% 6.38% 5.88%