I need help solving a chemistry question, can someone help me work it out

Question

1.0 mole of NaCl is added to 1.0 kg of water. The freezing point of the solution will be ________ the freezing point of pure water.

 

A) higher than B) lower than C) the same as

Answer 1

B) lower than

 

Freezing point depression states that when a solute (NaCl) is added to a solvent (H2O), the freezing point of the solvent is depressed or lower.