$15-$What should be the minumum distribution coefficient that permits removal of $65\%$ of a solute from $75$ ml$.$ aqueous solution when extracted with $3$ portions of $25$ mL of toluene.

A$)0\mathrm{.}16$

B$)0\mathrm{.}46$

C$)1\mathrm{.}26$

D$)0\mathrm{.}92$

E$)1\mathrm{.}62$