The correct option is
D Cataract
The correct option is D.
Explanation of correct option:
- A cataract is an eye disorder in which the eye's lens gets clouded.
- Cataract patients compare seeing through clouded lenses to gazing through a frosty or fogged-up window.
Explanation of incorrect options:
Options A, B, and C :
- Rods and cones are the photoreceptor cells of the retina.
- Rods have rhodopsin pigment proteins.
- Cones have iodopsin pigment proteins.
- All of these help in the vision of an eye while a cataract is an eye disorder.
Final answer: A cataract is the odd one out among them.