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 are a non-motile bacteria \nSelect and explain. \nA. Helicobacter pylori, B. Klebsiella pneumoniae, C. Vibrio Cholerae, D. E.Coli', 'role': 'user'}, {'content': 'Answer: B \nExplanation: All the bacteria in the list except Klebsiella pneumoniae have flagella (or endoflagella) which\xa0gives them the property of motility.', 'role': 'assistant'}]