You were hired as a consultant to Giambono Company, whose target capital structure is 40% debt, 15% preferred, and 45% 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 12.75%. The firm will not be issuing any new stock. What is its WACC?
a. 8.98%
b. 9.26%
c. 9.54%
d. 9.83%
e. 10.12%