This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Ear is 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: External auditory canal 3000 Hz Tympanic membrane 800-1600 Hz Middle ear 800 Hz Ossicular chain 500-2000 Hz Thus the greatest sensitivity of sound transmission is between 500- 3000 Hz Ref: Dhingra 7e pg 17.', 'role': 'assistant'}]