The correct option is C Carrot
Rhodopsin is a conjugated protein present in the rods cells, in the retina of the eyes. It contains 11-cis-retinal ( a form of vitamin A) and the protein opsin. Vitamin A activates rhodopsin and sensitizes it to ultraviolet light.
As carrot is a rich source of vitamin A. So, a person deficient in Rhodopsin should take lots of carrot.