You are presented with the question "What about the temperature may cause water vapor to condense overnight and in the early morning?" and the following answer choices: 
- It reaches the dew point
 - It reaches Kelvin point
 - Movement of an air mass
 - Warm air moving into cold air
 - It reaches evaporation point
 - Temperature changing
 - preventing heat transfer
 - It is too dark to measure

Now knowing that dew is formed when water vapor condenses over night and dew point is the temperature at which dew forms, choose the best answer.


 

 It reaches the dew point        