A bond has a coupon rate of $8\%,$ pays interest semiannually, sells for $$960,$ and matures in $3$ years. What is its yield to maturity? A$.12\mathrm{.}17\%$ B$.9\mathrm{.}57\%$ C$.5\mathrm{.}48\%$ D$.4\mathrm{.}78\%$