This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hearing Loss, Subject name: ENT
[{'content': 'When the patient fails to understand normal speech, but can understand shouted or amplified speech the hearing loss, is termed - \nSelect and explain. \nA. Mild hearing loss, B. Moderate hearing loss, C. Severe hearing loss, D. Profound hearing loss', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Severe hearing loss o WHO recommended the following classification on the basis of pure tone audiogram.Hearing threshold in better ear (average of 500, 1000, 2000Hz)Degree of impairment (WHO classification)Ability to understand speech0-2526-4041-5556- 7071-91Above 91Not significantMildModerateModerately severeSevereProfoundNo significant difficulty with faint speechDifficulty with faint speech, requent difficulty with normal speech.Frequent difficulty even with loud speechCan understand only shouted or amplified speechUsually cannot understand even amplified speech", 'role': 'assistant'}]