What is the yield to maturity on a $1-$year bond with a $11\frac{5}{8}$ coupon that is currently selling at $109\frac{21}{32}$ :

$($a$)11\mathrm{.}625\%$;

$($b$)\frac{21}{32}$;

$($c$)1\mathrm{.}80\%$;

$($d$)109\%$;