This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Which virus reactivates & involves the eye - \nSelect and explain. \nA. Herpes zoster, B. CMV, C. E. B. Virus, D. Enterovirus 70', 'role': 'user'}, {'content': 'Answer: A \nExplanation: repeat', 'role': 'assistant'}]