Fact 1: The vanes rotating in an electric fan causes air to move.

Fact 2: Air moving through a room helps a person to feel less short of breath.

Given the two facts above, answer the question "What can help people feel less short of breath?" with the following options: 
- Electric fan
 - prolactin release
 - sensory neurons
 - evaporation
 - exercise
 - kinetic energy
 - sweating
 - The atmosphere


 

 Electric fan        