A bond has a face value of $$1,000,$ currently selling for $$824.$ It has a coupon rate of $7\%$ and the YTM is $12\%.$ The bond pays semiannual coupons. How many years are left until maturity?

$10\mathrm{.}61$

$4\mathrm{.}71$

$5\mathrm{.}31$

$4\mathrm{.}84$

$9\mathrm{.}42$