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': 'During normal conversation sound heard at 1 meter distance is- \nSelect and explain. \nA. 80 dB, B. 60 dB, C. 90dB, D. 120 dB', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 60dB o Intensity is the strength of sound which determines its loudness. It is usually measured in decibels (dB).o Following are intensities when a person is at a distance of one meter from sound source. IntensityWhisper30 dBNormal conversation60 dBShout90 dBDiscomfort of ear120 dBPain in ear130dB", 'role': 'assistant'}]