You are presented with the question "What converts electrical energy into what we hear?" and the following answer choices: 
- a doorbell
 - sensory neurons
 - a solar panel
 - a battery
 - Firecrackers
 - waves
 - a water pump
 - engines

Now knowing that adoorbell converts electrical energy into sound and hearing is the act of perceiving sound, choose the best answer.


 

 a doorbell        