Unity communications company's noncallable bonds were issued several years ago and now have 15 years to maturity.

Unity communications company's noncallable bonds were issued several years ago and now have 15 years to maturity. These bonds have a 12% annual coupon, paid semiannually, sells at a price of $1,070, 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 calcularion?

5.35%, 5.58%, 5.83%, 6.62%, or 7.33%