NEET 2024 Chemistry question on Solutions

The plot of osmotic pressure ($\Pi$) vs concentration (mol $\mathrm{L^{-1}}$) for a solution gives a straight line with slope $25.73$ L bar $\mathrm{mol^{-1}}$. The temperature at which the osmotic pressure measurement is done is

(Use $R = 0.083$ L bar $\mathrm{mol^{-1}}$ $\mathrm{K^{-1}}$)