This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'Rapid urea breath test is positive in? \nSelect and explain. \nA. H pylori, B. Klebsella, C. Proteus, D. Ureoplasma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) H pyloriRef: Harrison's 17/e, table 144-1", 'role': 'assistant'}]