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': "Rinne's test is negative if minimum deafness is - \nSelect and explain. \nA. 15-20 dB, B. 25-30 dB, C. 35-40 dB, D. 15-50 dB", 'role': 'user'}, {'content': 'Answer: A \nExplanation: As discussed in the text in Rinnies test—air conduction of the ear is compared with its bone conduction.\nHence there is false negative Rinne test (BC > AC).', 'role': 'assistant'}]