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
Mental retardation is defined as IQ less than- 
Select and explain. 
A. 85, B. 80, C. 75, D. 70
D: 70
Answer: D: 70 
Explanation: Ans i.e., 'd' i.e., 70 Classification of mental retardationo A child with IQ < 70 is called as mentally retarded.Degree of MRIQMild51-70Moderate36-50Severe21-35Profound0-20o IQ level between 71-90 is designated as borderline intelligence.