All of the Following Statements About System Evacuation Are True,EXCEPT

All of the following statements about system evacuation are true,EXCEPT:

A) Water boils at a lower temperature at higher altitudes.
B) Vacuum pump efficiency is increased at higher altitudes.
C) At high altitudes, ambient temperature must be raised for the vacuum pump to efficiently remove moisture.
D) Running the vehicle engine will raise the temperature of the underhood components.