Great Lakes Packing has two bond issues outstanding. The first issue has a coupon rate of $9$ percent, matures in $6$ years, has a total face value of $$5$ million, and is quoted at $101\mathrm{.}2$ percent of face value. The second issue has a $7\mathrm{.}5$ percent coupon, matures in $13$ years, has a total face value of $$18$ million, and is quoted at $99$ percent of face value. Both bonds pay interest semiannually. What is the firm's weighted average aftertax cost of debt if the tax rate is $34$ percent?

A$.5\mathrm{.}75$ percent

B$.6\mathrm{.}67$ percent

C$.5\mathrm{.}83$ percent

D$.6\mathrm{.}26$ percent

E$.5\mathrm{.}19$ percent