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: Medicine
[{'content': "Mutation in alpha 5 chain of collagen 4, the diagonisis - \nSelect and explain. \nA. Alport's syndrome, B. Thin membrane disease, C. Nodular glomerulosclerosis, D. Good pasture syndrome", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]