A firm issues five$-$year bonds with a coupon rate of $6\mathrm{.}3\%,$ paid semiannually. The credit spread for this firm's five$-$year debt is $0\mathrm{.}8\%.$ New five$-$year Treasury notes are being issued at par with a coupon rate of $4\%.$ What should the price of the firm's outstanding five$-$year bonds be per $$100$ of face value?

A$.$ $$127\mathrm{.}92$

B$.$ $$106\mathrm{.}60$

C$.$ $$85\mathrm{.}28$

D$.$ $$149\mathrm{.}24$