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
[{'content': 'Main gene for development of eye is \nSelect and explain. \nA. MIP - 29 gene, B. PAX - 6 gene, C. CRYA4 gene, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]