This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vibrio, Subject name: Microbiology
[{'content': 'Rice watery stool is indicative of which organism- \nSelect and explain. \nA. Vibrio cholerae Ol, B. Vibrio cholerae 0139, C. Vibrio vulnificus, D. Shigella', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Vibrio cholerae OlRef: Microbiology by Ananthanarayan and Paniker 8th ed. /302-305* Though the various strains of cholera may present with rice watery diarrhea, the classic rice watery diarrhea is usually associated with strains Ol and strain 0139.* In these strains the more common strain to find is strain Ol.', 'role': 'assistant'}]