The theoretical ethanol yield from a C$5$ sugar biomass is $314$ kg$/$ton$.$ Calculate the approximate concentration of sugars present in the biomass if theoretical ethanol yield constant is $0\mathrm{.}51$ and ethanol density is $0\mathrm{.}789$ g$/$cm$3$ at $20\backslash$deg C

$($a$)1$ L$/$ton

$($b$)397$ L$/$ton

$($c$)616$ L$/$ton

$($d$)780$ L$/$ton