Fact 1: Aprism is used for refracting light.

Fact 2: Refraction Refraction is the bending of light rays.

Given the two facts above, answer the question "What may bend light rays?" with the following options: 
- fibers
 - prism
 - an ion
 - sun
 - a wave
 - lightbulb
 - forces
 - flashlight


 

  prism       