Fact 1: When light enters the eye through the pupil , that light falls on the retina.

Fact 2: Receptors are cells in the retina that perceive light.

Given the two facts above, answer the question "What part of the eye perceives light when light enters through the pupil?" with the following options: 
- nerves
 - bacteria
 - cells
 - viruses
 - receptors
 - molecules
 - organ
 - Epidermis


 

     receptors    