Jasper's, Inc. is expected to pay an annual dividend of $1.21 per share next year. This dividend is expected to increase by 3.5 percent annually. Jasper's also pays a 6 percent, annual coupon on its outstanding bonds. These bonds mature in 12.5 years and have a face value of $1,000. The firm's stock has a beta of 1.38 and a market price of $42.60 a share. The bonds are priced at $1,064 each. The market risk premium is 9.5 percent, the risk-free rate is 3.7 percent, and the tax rate is 32 percent. What is the firm's weighted average cost of capital if its debt-equity ratio is 0.36?
a 9.46%
b 9.58%
c 9.64%
d 9.69%