raises the freezing point. lowers the freezing point. raises the boiling point. lowers the boiling point.
I gave my students this multiple choice question: When salt is added to ice, the ice begins to melt because the salt

Only one answer is correct among these 4 choices:
- raises the freezing point.
- lowers the freezing point.
- raises the boiling point.
- lowers the boiling point.

Could you tell me which one is correct?

lowers the freezing point.