Coca-Colas cost of retained earnings is 8%, cost of preferred stock is 23% and its cost of debt is 8%. The optimal capital structure is 45% common stock, 20% preferred stock and 35% of debt. The firm will not be issuing any new stock and the marginal tax rate is 40%. What is the weighted average cost of capital for Coca-Cola?

a. 11.00%

b.9.88%

c.10.57%

d.9.32%

e. 9.19%