The current market value of the assets of Smethwell, Inc., is $88 million, with a standard deviation of 15 percent per year. The firm has zero-coupon bonds outstanding with a total face value of $48million. These bonds mature in 3 years. The risk-free rate is 4 percent per year compounded continuously. What is the value of d1? 3.50 3.35 3.16 3.54 3.46