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': 'The organism that is strongly urease positive: \nSelect and explain. \nA. Proteus species, B. Klebsiella species, C. Helicobacter pylori, D. Staphylococculs', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Proteus species', 'role': 'assistant'}]