Answer:
C. structure C
Explanation:
Structure C is called the pupil and is the first structure of the eye through which the light passes.
The pupil is located between the cornea and the lens and is the main responsible for the passage of light, allowing the light from the environment to reach the sensory organs of the retina. In addition to allowing the passage of light, the pupil also regulates the amount of light that will reach the retina.
