You are presented with the question "an energy source used by devices moves well through what?" and the following answer choices: 
- objects that have mass
 - colder weather
 - Veins and arteries.
 - an electron microscope
 - dormant state
 - wires and water
 - during the day
 - they body they live in

Now knowing that electricity is used as an energy source by electrical devices and electricity moves well through wires and water, choose the best answer.


 

      wires and water   