You are presented with the question "what does an electric circuit need to work properly" and the following answer choices: 
- complete
 - a path
 - a piston
 - radio waves
 - engines
 - multiple paths
 - energy
 - heat

Now knowing that when an electrical circuit is working properly , electrical current runs through that circuit and an electric circuit is the path of an electric current, choose the best answer.


 

  a path       