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

Fact 2: Batteries are a very handy source of power.

Given the two facts above, answer the question "What requires a battery to produce light?" with the following options: 
- peachleaf willow
 - a dog
 - electrically
 - a cat
 - a flashlight
 - energy
 - another battery
 - heat energy


 

     a flashlight    