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: Psychiatry
IQ of 70 - 75 denotes 
Select and explain. 
A. Borderline MR, B. Moderate MR, C. Severe MR, D. Normal intelligence
A: Borderline MR
Answer: A: Borderline MR 
Explanation: Normal IQ → 90-109; Borderline IQ → 70-89; Mild mental retardation IQ → 50-69; Moderate mental retardation IQ → 35-49; Severe MR IQ → 20-34; Profound MR IQ → 0-19.