A nonuniform, $80\mathrm{.}0-$g$,$ meterstick has its center of mass at the $51\mathrm{.}0-$cm mark. At what location on the meterstick should a $5\mathrm{.}00-$g tack be placed so that the stick will balance at the $50\mathrm{.}0$ cm mark? A$)16\mathrm{.}0$ cm B$)67\mathrm{.}0$ cm C$)66\mathrm{.}0$ cm D$)35\mathrm{.}0$ cm E$)34\mathrm{.}0$ cm