An investor owns a corporate bond that currently sells for $$1,175.$ The coupon rate is $9\%,$ interest is paid semiannually, and the bond matures in $20$ years. The bond is callable in $11,$ years at $$1,050.$

What is the yield to call on this bond?

$7\mathrm{.}42\%$

$6\mathrm{.}72\%$

$7\mathrm{.}32\%$

$7\mathrm{.}00\%$