Lumanat Inc. issued a semi$-$annual corporate bond with a $12\%$ coupon interest rate, matures in $10$ years and has a current market value of $$650.$ The bond has a face value of $$1000$ and is callable in $2$ years at $$1050.$ What is the exact current annual yield for this bond?

a$.$ None of the above

b$.16\mathrm{.}7\%$

c$.23\mathrm{.}3\%$

d$.17\mathrm{.}1\%$

e$.20\mathrm{.}0\%$

f$.21\mathrm{.}5\%$

g$.18\mathrm{.}5\%$