You are presented with the question "What in an electric fan provides a cooling breeze?" and the following answer choices: 
- kinetic energy
 - metal face
 - heat energy
 - activation energy
 - Solar energy
 - plastic buttons
 - vanes rotating
 - electric cord

Now knowing that the vanes rotating in an electric fan causes air to move and fans move air, providing a cooling breeze, choose the best answer.


 

       vanes rotating  