This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physiology of Ear, Subject name: ENT
[{'content': 'Sound intensity of whispering is- \nSelect and explain. \nA. 30 dB, B. 90 dB, C. 2 dB, D. 120 dB', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 30 dB 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.Intensity WhisperNormal conversationShoutDiscomfort of earPain in ear30 dB60 dB90 dB120dB130 dB", 'role': 'assistant'}]