Higher level corrections , definitions

The correct answer is (B). There are two levels of interpretation that you can make here. The first concerns only the definition of boiling point, which states that a liquid will boil when the vapor pressure equals the atmospheric pressure. What this means is that a substance with a low vapor pressure will have to be heated to a higher temperature to make the vapor pressure equal the atmospheric pressure. Materials with higher vapor pressures won t need to be heated as much to boil. 

---