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': 'True about cholerae includes all except: \nSelect and explain. \nA. Incubation period range from 1-5 day, B. Produces isotonic diarrhea, C. Cholera toxin plays principal role, D. Antibodies 01 cholera provides protection against', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is. 'd' i. e., Antibodies 01 cholera provides protection against", 'role': 'assistant'}]