CMS Corporation's balance sheet as of today is as follows: The bonds have a 7.7% coupon rate, payable semiannually, and a par value of $1,000. They mature exactly 10 years from today. The yield to maturity is 12%, so the bonds now sell below par. What is the current market value of the firm's debt? Select the correct answer. a. $7,535,577 b. $7,533,967 c. $7,532,357 d. $7,534,772 e. $7,533,162