You are presented with the question "when a circuit is working properly, what runs through that circuit?" and the following answer choices: 
- coils
 - direct energy
 - electromagnetic energy
 - conductors
 - h2o
 - activation energy
 - hydrogen and oxygen
 - flow of electrons

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


 

        flow of electrons 