Suppose a State of California bond will pay $$1,000$ ten years from now. If the going interest rate on these $10-$year bonds is $5\mathrm{.}4\%,$ how much is the bond worth today?

a$.$ $$591\mathrm{.}01$

b$.$ $$574\mathrm{.}00$

c$.$ $$560\mathrm{.}73$

d$.$ $$622\mathrm{.}92$

e$.$ $$586\mathrm{.}94$