There are four layers of cells making up the retina. These are:

I- bipolar cells
II- cells of the optic nerve
III- light-sensitive cells (rods and cones), and
IV- epithelial cells.
Which of the following shows the order in which light passes through these layer until it hits the epithelial layer?

The correct order in which light passes through these layers until it hits the epithelial layer is:

III- light-sensitive cells (rods and cones)
I- bipolar cells
II- cells of the optic nerve
IV- epithelial cells