Some Things Take Longer to Cook at High Altitudes Than

Multiple Choice

Some things take longer to cook at high altitudes than at low altitudes because .

A) water boils at a higher temperature at high altitude than at low altitude
B) water boils at a lower temperature at high altitude than at low altitude
C) there is a higher moisture content in the air at high altitude
D) heat isn't conducted as well in low density air
E) natural gas flames don't burn as hot at high altitudes