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': "Megalocornea is not seen in \nSelect and explain. \nA. Marfan Syndrome, B. Congenital Rubella, C. Alport syndrome, D. Down's syndrome", 'role': 'user'}, {'content': "Answer: B \nExplanation: Megalocornea is a feature of\n\nMarfan Syndrome\nAlport syndrome\nDown's syndrome\nEhler-Danlos Syndrome", 'role': 'assistant'}]