Mark the vitamin present in rhodopsin

1. vit-A

2. vit-B

3. vit-C

4. vit-D

(a) The rods contain a purplish red protein called the rhodopsin. It is a photosensitive compound. In eye that is composed of opsin (a protein) and retinal (an aldehyde of vitamin-A), whereas vitamin-B, C and D not directly related with vision.