Question 2 of 3 Question 2 2 points To help finance a major expansion, Castro Chemical Company sold a bond several years ago that now has 20 years to maturity. This bond has a 9.25% annual coupon, paid semiannually, sells at a price of $1,025, and has a par value of $1,000. If the firm's tax rate is 40%, what is the component cost of debt for use in the WACC calculation? Do not round your intermediate calculations a. 6.41% Sud b.4.63% c.6.20% O d.5.39% e. 5.66%