Liquid Solution · Chemistry · IAT (IISER)

Which one of these plots correctly describes the variation of osmotic pressure ( $\Pi$ ) of a fixed amount of a solute against the volume $(\mathrm{V})$ of the solution at a fixed temperature?

In two solutions $X$ (hexane and benzene) and $Y$ (water and HCl ), what types of deviations from Raoult's law are observed?