In order to accurately assess the capital structure of a firm, it is necessary to convert its balance sheet figures from historical book values to market values. KJM Corporation's balance sheet (book values) as of today is as follows: Long-term debt (bonds, at par) $22,500,000 Preferred stock 2,000,000 Common stock ($10 par) 12,000,000 Retained earnings 3,000,000 Total debt and equity $39,500,000 The bonds have a 6.6% coupon rate, payable semiannually, and a par value of $1,000. They mature exactly 20 years from today. The yield to maturity is 10%, so the bonds now sell below par. What is the current market value of the firm's debt? Do not round your intermediate calculations. a. $16,573,681 b. $15,883,749 c. $17,251,388 d. $15,936,649