20. Golden Sock Co. has $720,000 of assets (which equal total invested capital), and it uses no debt-it is financed only with common equity. The new CFO wants to ermploy enough debt to raise the total debt to total capital ratio to 40%, using the proceeds from borrowing to buy back common stock at its book value. How much must the firm borrow to achieve the target debt ratio? a. $273,600 b. $288,000 c. $302,400 d. $317,520 e. $333,396