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': 'Micro organism motile at 25° C but not motile at 37° C \nSelect and explain. \nA. Listeria monocytogens, B. Campylobacter, C. Yersinia pestis, D. Streptococcus agalactiae', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]