Elmco is financed with 30% debt, 10% preferred stock, and 60% equity. Its bonds' coupon rate is 5% and yield to maturity (YTM) is 7%. Its preferred stock sells at $50 and pays a dividend of $5. The common stock's beta is 0.9. The market risk premium is 9%, risk-free rate is 4%, and the corporate tax rate is 25%. What is Elmco's weighted average cost of capital (WACC)? 8.58% 9.84% 9.39% 10.36% 7.68%