Fact 1: Alight bulb is used for seeing in the dark.

Fact 2: Anyone who looks, eventually sees.

Given the two facts above, answer the question "What can be used for looking around in the dark?" with the following options: 
- a microscope
 - a light bulb
 - Electrical energy
 - binoculars
 - focusing a lens
 - bushes
 - glasses
 - electricity


 

  a light bulb       