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': 'In children diahorrhea "infantile" diahorrea is most commonly due to: \nSelect and explain. \nA. Adeno virus, B. Rota virus, C. Reo virus, D. HPV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rota virus', 'role': 'assistant'}]