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
IQ in severe mental retardation - 
Select and explain. 
A. 50 - 70, B. 35 - 49, C. 20 - 34, D. < 20
C: 20 - 34
Answer: C: 20 - 34 
Explanation: Ans. is 'c' i.e., 20-34 CategoryIQMild50-70Moderate35-49Severe20-34Profound<20