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': 'Incubation period of cholera is ? \nSelect and explain. \nA. 1-2 days, B. 7-10 day, C. 10-14 days, D. 3-5 weeks', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 1-2 days", 'role': 'assistant'}]