The Fact That the Boiling Point of a Pure Solvent

Multiple Choice

The fact that the boiling point of a pure solvent is lower than the boiling point of a solution of the same solvent is a direct consequence of the

A) freezing-point depression of the solution.
B) vapor pressure of the solution being higher than the vapor pressure of the pure solvent.
C) osmotic pressure of the solvent being lower than the osmotic pressure of the solution.
D) vapor pressure of the solution being lower than the vapor pressure of the pure solvent.
E) osmotic pressure of the solvent being higher than the osmotic pressure of the solution.