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
Area of brain involved in OCD: March 2004 
Select and explain. 
A. Basal ganglia, B. Temporal lobe, C. Cerebellum, D. All of the above
A: Basal ganglia
Answer: A: Basal ganglia 
Explanation: Ans. A i.e. Basal ganglia