You were hired as a consultant to Giambono Company, whose target capital structure is 45% debt, 15% preferred, and 40% common equity. The after-tax cost of debt is 6.00%, the cost of preferred is 7.50%, and the cost of retained earnings is 16.75% The firm will not be issuing any new stock. What is its WAOC? 10.53 b. 9.40 O 73 0.10.08