The Boiling Point of Water at Sea Level Is

Multiple Choice

The boiling point of water at sea level is
At higher altitudes, the boiling point of water will be

A) higher, because the altitude is greater.
B) the same, because water always boils at
C) lower, because the atmospheric pressure is lower.
D) higher, because there are fewer water molecules in the air.
E) lower, because temperatures are lower.