This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth, Development, and Behavior, Subject name: Pediatrics
Range of IQ in mild mental retardation is? 
Select and explain. 
A. <50, B. 50-70, C. 70-100, D. >100
B: 50-70
Answer: B: 50-70 
Explanation: b. 50-70(Ref: Nelson's 20/e p 217, Ghai 8/e p 52-54)Mild intellectual disability (ID) is IQ between 50-70, while severe ID is IQ <50