What is the cost of retained earnings for Foggy Futures Weather Forecasters? The firm is in the 40% tax bracket. The optimal capital structure is listed below:

Source of Capital Weight Long-Term Debt 25% Preferred Stock 20% Common Stock 55%

Debt: The firm can issue $1,000 par value, 8% coupon interest bonds with a 20-year maturity date. The bond has an average discount of $30 and flotation costs of $30 per bond. The selling price is $1,000. Preferred Stock: The firm can sell preferred stock with a dividend that is 8% of the current price. The stock costs $95. The cost of issuing and selling the stock is expected to be $5 per share. Common Stock: The firm's common stock is currently selling for $90 per share. The firm expects to pay cash dividends of $7 per share next year. The dividends have been growing at 6%. The stock must be discounted by $7, and flotation costs are expected to amount to $5 per share. Retained Earnings: The firm expects to have enough retained earnings in the coming year to be used in place of any new stock being issued. Select one:

a. 19.63%

b. 12.11%

c. 13.78%

d. 10.12%