There is a zero coupon bond that sells for $$560$ and has a par value of $$1,000.$ If the bond has $9$ years to maturity, what is the yield to maturity? Assume semiannual compounding.

$6\mathrm{.}55\%$

$3\mathrm{.}27\%$

$6\mathrm{.}65\%$

$5\mathrm{.}56\%$