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
Drug of choice for Huntington's chorea is 
Select and explain. 
A. Haloperidol, B. Chlorpromazine, C. Tetrabenazine, D. Donepezil
C: Tetrabenazine
Answer: C: Tetrabenazine 
Explanation: Huntigton's chorea is characterized by dopaminergic overactivity and Tetrabenazine is a dopamine depleter which is the drug of choice for this condition.