Which of the Following Will Cause the Calculated Molar Mass

Multiple Choice

Which of the following will cause the calculated molar mass of a compound determined by the freezing-point depression method to be greater than the true molar mass?

A) Water gets into the solvent after the freezing point of the pure solvent is determined.
B) Some of the solute molecules break apart.
C) The mass of solvent is smaller than determined from the weighing.
D) While adding the solute,some was spilled on the lab bench.
E) All of the above.