What is the equivalent value $60$ days from now, of a payment stream comprised of $$200$ due from now and $$400$ due $20$ days from now? Assume money can earn $4\mathrm{.}25\%.$A$)$ $$599\mathrm{.}05)$ $$598\mathrm{.}99$C$)$ $$602\mathrm{.}57$D$)$ $$601\mathrm{.}63$E$)$ $$603\mathrm{.}54$