A Rectangular plate $1m$ wide by $2\mathrm{.}4m$ long is vertically submerged in water the shorter edge at$,$ and parallel to the water surface. How far in $m$ below the centroid of the plate is the resultant horizontal force acting on each side.

A$.0\mathrm{.}300m$

C$.0\mathrm{.}250m$

B$.0\mathrm{.}350m$

D$.0\mathrm{.}200m$