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Please find below the answer:

The correct option is (2).
In the retina of eyes, a protein known as opsin binds to retinal which are light-sensitive pigments and a component of rhodopsin (an aldehyde). This pigment requires vitamin A for its production. Carotene present in red-orange fruits helps in synthesizing vitamin A derivates, a deficiency of which causes vision problems. 

Retinal helps in absorbing light of all photopigments.

Hope this clears your doubt.

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