You are presented with the question "If an object reflects what toward the eye then that object can be seen" and the following answer choices: 
- observe it
 - sunlight
 - ultraviolet light
 - neutrons
 - Joules
 - photons
 - x-rays
 - positive

Now knowing that if an object reflects light toward the eye then that object can be seen and light is made up of particles called photons, choose the best answer.


 

      photons   