Below is a list of prices for zero$-$coupon bonds of various maturities:

Year $1$: $$943\mathrm{.}40$

Year $2$: $873\mathrm{.}52$

Year $3$: $81$

A$)$An $8\mathrm{.}5\%$ coupon $$1,000$ par bond pays an annual coupon and will mature in three years. What should the yield to maturity on the bond be$?$

B$)$If at the end of the first year the yield curve flattens out at $8\%,$ what will be the $1-$year holding$-$period return on the coupon bond?