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': 'Which of the following statement is true about vibrio cholerae - \nSelect and explain. \nA. There is no natural reservoir, B. Transported in alkaline peptone water medium, C. Halophilic, D. Oxidase negative', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]