You are presented with the quiz "When light enters the eye through the pupil, what structure transmits information to the brain?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "when light enters the eye through the pupil , that light falls on the retina" and "pictures are formed on the retina, and are then transmitted by the optic nerve to the brain". 

So, what's the best answer to the question?


 

     optic nerve      