Dallas Inc. is considering issuing long-term debt. The debt would have a 30-year maturity and a 10% coupon rate with an annual payment. If the firm can sell this debt for $950 today, and its tax rate is 35%, what is the component cost of debt for use in the WACC calculation?
a. 10.00%
b. 10.56%
c. 6.86%
d. 6.50%
e. 7.23%