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
H pylori treatment: A/E- 
Select and explain. 
A. Oentamycin, B. Clarithromycin, C. Metronidazole, D. Amoxicil in
A: Oentamycin
Answer: A: Oentamycin 
Explanation: H.pyori treatment is based upon a PPI taken simultaneously with 2 antibiotics (from amoxicillin, clarithromycin and metronidazole) Davidson page 874