Fact 1: When electricity flows to a light bulb , the light bulb will turn on.

Fact 2: An electric current is a flow of electric charge.

Given the two facts above, answer the question "What can turn a lightbulb on?" with the following options: 
- Electric current
 - cigarettes
 - Shining a flashlight on it
 - hydrogen and oxygen
 - Unplugging the lamp
 - direct energy
 - Sunlight
 - heat energy


 

 Electric current        