Equimolar solutions of electrolytes with different number of ions in the same solvent have

The elevation in the boiling point of the solution and the depression in the freezing point of the solution are colligative properties and depend on the number of solute particles.
The equimolar solutions of non-electrolytes have same number of solute particles.
Hence, equimolar solutions of two non-electrolytes in the same solvent have the same boiling point and freezing point.

Therefore, option C is the correct answer