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': 'Persistant diarrhea is caused by - \nSelect and explain. \nA. ETEC, B. EPEC, C. EEC, D. EAEC', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., EAEC", 'role': 'assistant'}]