This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social science, Mental health & Genetics, Subject name: Social & Preventive Medicine
[{'content': 'An IQ under 24 would be classified as what kind of level of intelligence \nSelect and explain. \nA. imbecile, B. borderline, C. moron, D. idiot', 'role': 'user'}, {'content': "Answer: D \nExplanation: level of intelligence Idiot - 0 - 24 imbecile - 25 - 49 moron - 50 - 69 borderline - 70 - 79 low normal - 80 - 89 normal - 90 - 109 superior - 110 - 119 very superior - 120 - 139 near genius - 140 and over ref; (page no;735) 25th edition of PARK's textbook of Preventive and Social medicine", 'role': 'assistant'}]