Temple$-$Midland, Inc. is issuing a $$1,000$ par value bond that pays $8$ percent annual interest and matures in $15$ years. Investors are willing to pay $$950$ for the bond and Temple faces a tax rate of $35$ percent. What is Temple's after$-$tax cost of debt on the bond?

Group of answer choices

$5\mathrm{.}10\%$

$5\mathrm{.}60\%$

$6\mathrm{.}30\%$

$6\mathrm{.}80\%$