Bonds of Smiley Corporation with a par value of $$1,000$ sell for $$960,$ mature in five years, and have a $7\%$ annual coupon rate paid semiannually. Calculate $($a$)$ Current yield, $($b$)$ Yield to maturity, and $($c$)$ Horizon yield $($also called realized compound return$)$ for an investor with a three$-$year holding period and a reinvestment rate of $6\%$ over the period. At the end of three years, the $7\%$ coupon bonds with two years remaining will be sold at yield to maturity of $7\%.$ Please solve this problem with just Excel and nothing else.