Which of the following accurately contrasts the boiling or freezing points of water and of a refrigerant used in a household refrigerator?
A. The boiling point of the refrigerant should be higher than the boiling point of water.
B. The boiling point of the refrigerant should be lower than the freezing point of water.
C. The freezing point of the refrigerant should be higher than the boiling point of water.
D. The freezing point of the refrigerant should be higher than the freezing point of water.