Fact 1: Aflashlight requires a source of electricity to produce light.

Fact 2: Flashlights and remote controlled cars get their energy from batteries.

Given the two facts above, answer the question "what do cars use?" with the following options: 
- heat energy
 - electricity
 - wind
 - water
 - to move people
 - oxygen
 - sensory neurons
 - engines


 

  electricity       