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: Pharmacology
[{'content': "Drug of choice for Huntington's chorea is \nSelect and explain. \nA. Haloperidol, B. Chlorpromazine, C. Tetrabenazine, D. Donepezil", 'role': 'user'}, {'content': "Answer: C \nExplanation: Huntigton's chorea is characterized by dopaminergic overactivity and Tetrabenazine is a dopamine depleter which is the drug of choice for this condition.", 'role': 'assistant'}]