This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enterobecteriaceae, Subject name: Microbiology
[{'content': 'Which of the following is a non motile bacteria - \nSelect and explain. \nA. Klebsiella pneumoniae, B. Helicobacter pylori, C. Vibrio Cholerae, D. E.Coli', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Klebsiella pneumoniaeRef: Microbiology by Ananthanarayan and Paniker 8th ed. 1278, 707* All the bacteria in the list except Klebsiella pneumoniae have flagella (or endoflagella) which gives them the property of motility.', 'role': 'assistant'}]