In the human eye, light is focused on the back of the retina by the:Group of answer choicesA. iris.B. pupil.C. lens.D. cornea.

The light in the human eye is focused on the back of the retina by the lens (C). The process is as follows:

1. Light enters the eye through the cornea, which is the clear, dome-shaped surface that covers the front of the eye. The cornea helps to shield the rest of the eye from germs, dust, and other harmful matter.

2. The light then passes through the pupil, which is the round, black circle in the center of the iris (the colored part of the eye). The iris adjusts the size of the pupil according to the amount of light that enters the eye.

3. After passing through the pupil, the light then hits the lens. The lens is a clear part of the eye behind