You paid $$1,068\mathrm{.}87$ for a $20-$year bond with a coupon rate of $7\mathrm{.}75\%.$ What would be your annual return rate if you hold the bond until maturity?

$7\mathrm{.}4\%$

$6\mathrm{.}8\%$

$6\mathrm{.}7\%$

$7\mathrm{.}1\%$

$7\mathrm{.}3\%$