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
[{'content': 'The drug of choice in Herpes Simplex Encephalitis is- \nSelect and explain. \nA. Acyclovir, B. Zidovudine, C. Amantadine, D. Vidarabine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]