No links please. Q.2

​Q2. A large vessel of height H, is filled with a liquid of density $\mathrm{\rho }$, upto the brim. A small hole of radius r is made at the side vertical face, close to the base. The horizontal force is required to stop the gushing of liquid is 

       (1) $2\left(\mathrm{\rho gH}\right){\mathrm{\pi r}}^2$                                             (2) $\mathrm{\rho gH}$

       (3) $\mathrm{\rho gH}$ $\mathrm{\pi r}$                                                   (4) $\mathrm{\rho g}$ $\mathrm{\pi r}$ ²