The saturated liquid feed of organic compounds, A$,$ B$,$ and C$,$ is separated in a distillation column. The feed flow rate is $100$ kmol$/$h consisted of $35$ mol$\%$ A$,45$ mol$\%$ B$,$ and $20$ mol$\%$ C$.$ When $99\%$ recovery of A is desired in the distillate and $98\%$ recovery of B in the bottom. C is a non$-$light$-$key component that is recovered $100\%$ in the distillate. $=0\mathrm{.}20.$aCA $=2\mathrm{.}04($a$)$ Calculate the distillate flow rate, D$,$ assuming all of C is in distillate.$($b$)$ Calculate $($L$/$D$)$min Using Underwood equations. Use Excel Solver or Goal Seek. $($if you didn't get D in $($a$),$ use $55\mathrm{.}55$ kmol$/$h$).$