Which structure forms the colored portion around the pupil?

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Multiple Choice

Which structure forms the colored portion around the pupil?

Explanation:
The iris forms the colored portion around the pupil. It’s a pigmented muscular ring that surrounds the pupil and controls its size, widening or narrowing the opening to regulate how much light enters the eye. The retina is the light-sensing layer at the back of the eye, not something that surrounds the pupil. The cornea is the clear front surface that helps focus light, and the lens sits behind the pupil to focus light further; neither forms the colored border around the pupil.

The iris forms the colored portion around the pupil. It’s a pigmented muscular ring that surrounds the pupil and controls its size, widening or narrowing the opening to regulate how much light enters the eye. The retina is the light-sensing layer at the back of the eye, not something that surrounds the pupil. The cornea is the clear front surface that helps focus light, and the lens sits behind the pupil to focus light further; neither forms the colored border around the pupil.

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