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': 'The viruses causing gastroenteritis are - \nSelect and explain. \nA. Rotavirus, B. Norwalk virus, C. Adenovirus, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'a' i.e., Rotavirus; 'b' i.e., Norwalk virus; 'c' i.e., Adenovirus Virus causng gastroenteritis Rota virus * Norwalk virus Entero virus 1) Corona virus Adeno virus 2) Calci virus", 'role': 'assistant'}]