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 produce both polar and peritrichous flagella. \nSelect and explain. \nA. V. parahemolytic, B. Pseudomonas, C. Legionella, D. Spirilla', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Polar flagella : Vibrio, pseudomonas, legionella, spirilla, campylobacter, H. pylori, spirochetes. – V. parahemolytic produce both polar and peritrichous flagella.', 'role': 'assistant'}]