You are presented with the question "What can help people feel less short of breath?" and the following answer choices: 
- Electric fan
 - prolactin release
 - sensory neurons
 - evaporation
 - exercise
 - kinetic energy
 - sweating
 - The atmosphere

Now knowing that the vanes rotating in an electric fan causes air to move and air moving through a room helps a person to feel less short of breath, choose the best answer.


 

 Electric fan        