A metal square plate of `10cm` side rests on `2mm` thick caster oil layer. Calculate the horizontal force needed to move the plate with speed `3cm s^(-1) : (` Coefficient of viscosity of caster oil is 15 poise. )
A. `2.25xx10^(-2)N`
B. `2.25xx10^(-1)N`
C. `2.25xx10^(-3)N`
D. `2.25xx10^(-4)N`