This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
In the media of the eye, highest refractive index is of the: 
Select and explain. 
A. Cornea, B. Aqueous humour, C. Lens, D. Vitreous humour
C: Lens
Answer: C: Lens 
Explanation: Ans. Lens