Answer : The correct option is, freezing point depression
Explanation :
Depression in freezing point : The depression in freezing point is depends on the molarity of the solution that is the number of moles of solute dissolved in 1000 gram of the solvent. It does not depend on the mature of the solute.
When an antifreeze like salt is used, the freezing point of a solution is lowered. The amount by which it is lowered is called the freezing point depression.
Hence, the correct option is, freezing point depression
