You purchased a bond on January $1,2017$ which matures in $15$ years on December $31$st$,2031.$ The bond has a par value of $$1,000,$ a stated coupon rate of $8\mathrm{.}0\%$ and pays interest semi$-$annually. On January $1,2024,$ the bond sells for $$1,070\mathrm{.}00.$ What is its yield to maturity?

Group of answer choices

$6\mathrm{.}20\%$

$6\mathrm{.}0\%$

$6\mathrm{.}85\%$

$6\mathrm{.}48\%$