There was an error in C.
The muscular curtain that lies close to the front of the eye, between the cornea on the outside and the lens, is the iris, which determines the colour of the eye. This structure primarily controls how much light reaches the retina by regulating the size of the eye's "window," or pupil (the portion of the eye that initially processes visual information and delivers it to the brain). As a result, it exhibits what is known as a "pupillary light response," contracting in bright light and opening up in dim light. The iris may be afflicted by a variety of problems, some of which are brought on by genetic defects or other illnesses.
To learn more about Iris? , Visit:
https://brainly.com/question/4190629
#SPJ4
