Cost of debt with fees. Kenny Enterprises will issue a bond with a par value of $$1,000,$ a maturity of twenty years, and a coupon rate of $8\mathrm{.}7\%$ with semiannual payments, and will use an investment bank that charges $$25$ per bond for its services. What is the cost of debt for Kenny Enterprises at following market prices?

a$.$ $$922\mathrm{.}13$

b$.$ $$1,004\mathrm{.}64$

c$.$ $$1,128\mathrm{.}39$

d$.$ $$1,176\mathrm{.}87$