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
Rapid urea breath test is positive in? 
Select and explain. 
A. H pylori, B. Klebsella, C. Proteus, D. Ureoplasma
A: H pylori
Answer: A: H pylori 
Explanation: Ans. (a) H pyloriRef: Harrison's 17/e, table 144-1