No excel please. Thank you.

The following information comes from the Galaxy Corporation balance sheet. The value of common stocks is $14,000, retained earnings equals $4,000, total common equity equals $18,000, preferred stock has a value of $3,000 and long-term debt totals $17,000. If the cost of common equity is 12.0%, the cost of preferred shares is 10.0%, the cost of debt is 9.0%, and the firm has a corporate tax rate of 35.0%, what is the firm's WACC adjusted for taxes? O 10.9% O 7.6% O 6.3% 9.1% 5.3%