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
Main gene for development of eye is 
Select and explain. 
A. MIP - 29 gene, B. PAX - 6 gene, C. CRYA4 gene, D. None of the above
C: CRYA4 gene
Answer: C: CRYA4 gene 
Explanation: None