Sunburn Sunscreen has a zero coupon bond issue outstanding with a $10,000 face value that matures in one year. The current market value of the firm's assets is $10,600. The standard deviation of the return on the firm's assets is 40 percent per year, and the annual risk-free rate is 7 percent per year, compounded continuously. What is the market value of the firm's debt based on the Black-Scholes model