A metal piece of mass 160g lies in equlibrium inside a glass of $H_2O$.The piece touches the bottom of the glass at a small number of points.If the density of the metal is $8000Kg/m^3$.Find the normal force exerted by the bottom of the glass on the metal piece

Question

$\begin{array}{1 1}(A)\;1.5N\\(B)\;1.4N\\(C)\;1N\\(D)\;1.8N\end{array}$