Which of the following aqueous solutions will have maximum vapor pressure?

An aqueous solution of ${\mathrm{I}}_{2\left(\mathrm{s}\right)}$ in water having mole fraction of Iodine equal to $0.01$.

$0.02 \mathrm{M} {\mathrm{BaCl}}_2$

$20\%$ w/w glucose solution

$0.05 \mathrm{M} {\mathrm{K}}_4 \left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]$