This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
IQ - 40 level of mental retardation: NEET 13 
Select and explain. 
A. Mild, B. Moderate, C. Severe, D. Profound
B: Moderate
Answer: B: Moderate 
Explanation: Ans. Moderate