Pure water freezes at 273K and 1bar pressure. The addition of 34 ....

Pure water freezes at $273K$ and $1bar$ pressure. The addition of $34 . 5g$ of ethanol to $500g$ of water changes the freezing point of the solution. Use the freezing point depression constant of water as $2Kkg{mol}^{- 1}$. The figures shown below represent the plots of vapour pressure ($V . P .$) versus temperature ($T$). [Molecular weight of ethanol is 46 g $46g{mol}^{- 1}$]
Among the following, the option representing a change in the freezing point is