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': 'First manifestation of Alport syndrome is - \nSelect and explain. \nA. Microscopic haematuria, B. Proteinuria, C. Oliguria, D. Sensorineural deafness', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]