You are presented with the question "Completing a circuit causes fan's blades to what?" and the following answer choices: 
- break
 - cycles
 - disappear
 - bend
 - behave
 - Rise
 - energy
 - turn

Now knowing that completing a circuit causes electricity to flow through that circuit and electricity flows through an electric motor in a fan, causing the fan's blades to turn, choose the best answer.


 

        turn 