This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Refraction at anterior surface cornea is maximum because 
Select and explain. 
A. Anterior surface of cornea has smaller curvature, B. There is greater difference between refractive indices of air & cornea, C. It is avascular transparent tissue, D. All of the above
B: There is greater difference between refractive indices of air & cornea
Answer: B: There is greater difference between refractive indices of air & cornea 
Explanation: .