K value is defined as the ratio of mole fraction of a component in the vapor phase to that in the liquid phase. The K values of propane and iso-butane at $293 \text{ K}$ are given in the table below: $$\genfrac{}{}{0pt}{}{\textbf{Pressure}}{\genfrac{}{}{0pt}{}{\textbf{(kPa)}}{\begin{aligned}1100 \\ 1200 \\ 1300 \\ 1400 \\ 1500\end{aligned}}} \qquad\qquad \genfrac{}{}{0pt}{}{\textbf{Propane}}{\genfrac{}{}{0pt}{}{\textbf{K-value}}{\begin{aligned}1.8\phantom{0} \\ 1.6\phantom{0} \\ 1.4\phantom{0} \\ 1.25 \\ 1.1\phantom{0}\end{aligned}}} \qquad\qquad \genfrac{}{}{0pt}{}{\textbf{iso-Butane}}{\genfrac{}{}{0pt}{}{\textbf{K-value}}{\begin{aligned}0.85 \\ 0.75 \\ 0.65 \\ 0.5\phantom{0} \\ 0.45\end{aligned}}}$$ Which one of the following is closest to the bubble point pressure (in kPa) of an equimolar mixture of propane and iso-butane at $293 \text{ K}$?