If you pay $$615\mathrm{.}18$ for a $30-$year bond with a coupon rate of $6\mathrm{.}00\%.$ What would be your annual return rate if you hold the bond until maturity?

$10\mathrm{.}6\%$

$7\mathrm{.}1\%$

$9\mathrm{.}1\%$

$10\mathrm{.}1\%$

$8\mathrm{.}1\%$