This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neurologic Evaluation, Subject name: Pediatrics
[{'content': 'IQ level in profound mental retardation is - \nSelect and explain. \nA. <20-25, B. 25-40, C. 40-55, D. 55-70', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., < 20-25 o I.Q. level is used to assess level in intelligenceo Degree of intellectual impairment is divided on basis of I.Q. level.Mild MR 55-70Moderate MR 40-55Severe MR 25-40Profound MR < 20 - 25", 'role': 'assistant'}]