You would have to evaporate the water to get just the sugar
According to Raoult's law, Vapor pressure is directly proportional to the mole fraction of the solution. As 1.0 M CaF2 has least moles here, it has lowest vapor pressure.
In short, Your Answer would be Option D
Hope this helps!
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Maybe sodium? becasue its an element and I would like some points... sorryy:((((