$7)$ MI has a $$1,000$ par value, $30-$year bond outstanding that was issued $20$ years ago at an annual coupon rate of $10\%,$ paid semiannually. Market interest rates on similar bonds are $7\%.$ Calculate the bond's price.

A$)$ $$956\mathrm{.}42$

B$)$ $$1,000\mathrm{.}00$

C$)$ $$1,168\mathrm{.}31$

D$)$ $$1,213\mathrm{.}19$

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