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: Medicine
Wilsons disease primarily affects which part of CNS 
Select and explain. 
A. Basal ganglia, B. Cerebrum, C. Cerebellum, D. Pons
A: Basal ganglia
Answer: A: Basal ganglia 
Explanation: Particularly affects the basal ganglia, particularly the putamen.