This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Medicine
Most sensitive test for H pylori is- 
Select and explain. 
A. Fecal antigen test, B. Biopsy urease test, C. Serological test, D. Urea breath test
B: Biopsy urease test
Answer: B: Biopsy urease test 
Explanation: <P>Davidson&;s principles and practice of medicine 22nd edition. *biopsbiopsy unease test is cheap,quick ,specific(95%) and sensitivity (85%)</p>