A $100ml$ cel$-$in$-$water cmulsion is prepared by mixing $30ml$ of oil $($density $0\mathrm{.}91\frac{g}{c}{m}^3)$ in $70ml$ of water$-$starch solution. The emulsion is further coeverted into microencappulated oil powder by spray wrface oil for $3g$ of oil powder is $05g.$

$($a$)83\mathrm{.}4$

$($b$)85\mathrm{.}5$

$($c$)80\mathrm{.}2$

$($d$)n$