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: Microbiology
[{'content': 'Hand-food-mouth disease is caused by: \nSelect and explain. \nA. Coxsackie-A virus, B. Coxsackie-B virus, C. FBV, D. CMV', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Coxsackie - A virus', 'role': 'assistant'}]