You're considering an investment in $12-$year, $$1,000$ face value bonds with a $9\mathrm{.}00\%$ coupon paid semiannually and a yield to maturity of $7\mathrm{.}50\%.$ The bonds are callable in four years at a call price of $$1,045.$ If you believe that the bonds will be called how much will you earn?

Select one:

a$.6\mathrm{.}61\%$

b$.7\mathrm{.}48\%$

c$.3\mathrm{.}47\%$

d$.5\mathrm{.}68\%$

e$.7\mathrm{.}50\%$