The photosensitive compound in human eye is composed of

The correct option is B opsin and retinal
The photosensitive compound or the photopigment in the human eye is composed of a protein called opsin and the aldehyde form of vitamin A (retinol) called retinal. These photopigments are responsible for visual perception.
Acetylcholine is an organic chemical that functions as a neurotransmitter - a chemical released by nerve cells to send signals to other cells.
Guanine and cytosine are nitrogenous bases found in the genetic material RNA and DNA.