You are analyzing a $18-$year, $$1,000$ par value bond which has a yield to maturity of $9\mathrm{.}21$ percent from The Glam Company. If the bond is quoted at $102\mathrm{.}69$ percent of face value, what must be the coupon rate for this annual$-$pay bond?

$8\mathrm{.}09\%$

$19\mathrm{.}04\%$

$9\mathrm{.}52\%$

$4\mathrm{.}76\%$

$9\mathrm{.}66\%$