9. You were hired as a consultant to Giambono Company, whose target capital structure is 40% debt, 15% preferred, and 45% common equity. Tax rate is 25%. The before-tax cost of debt is 8.00%, the cost of preferred is 7.50%, the cost of equity is 12.74%. What is Giambono Company's WACC? A. 8.25% B. 11.15% C. 10.06% D. 9.26%