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 V cholera O139 all except - \nSelect and explain. \nA. Clinical manifestations are similar 01 Eltor strain, B. First discovered in Chennai, C. Epidemiologically indistinguishable from 01 Eltor strain, D. Produces 01 Lipopolysaccharide', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]