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: ENT
[{'content': 'Ear sensitive to - \nSelect and explain. \nA. 500-3500 Hz, B. 1000-3000 Hz, C. 300-5000 Hz, D. 5000-8000 Hz', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ear best perceives sound in the frequency of 500-5000 HZ.', 'role': 'assistant'}]