You are given the following information about a bond: this bond has $10$ years until maturity, has a $$1,000$ par value; pays an $9\%$ semiannual coupon, is callable in $5$ years, and currently sells at a price of $$1,075.$ If called, the bond pays par value and one additional coupon payment. What is the yield to call on this bond?

$7\mathrm{.}75\%$

$6\mathrm{.}85\%$

$8\mathrm{.}25\%$

$8\mathrm{.}56\%$

$7\mathrm{.}91\%$