You are presented with the question "What happens to light rays in water?" and the following answer choices: 
- evaporation
 - they get wet
 - heat energy
 - a wave
 - they bend
 - they change frequency
 - break off
 - they vanish

Now knowing that water causes refraction of light and refraction Refraction is the bending of light rays, choose the best answer.


 

     they bend    