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
The definitive colour of the iris depends upon the: 
Select and explain. 
A. Anterior limiting layer, B. Stroma, C. Anterior pigmented epithelium, D. Posterior pigmented epithelium
A: Anterior limiting layer
Answer: A: Anterior limiting layer 
Explanation: Ans. Anterior limiting layer