This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti-Ulcer, Subject name: Pharmacology
[{'content': 'All drugs can be used in the treatment of H. Pylori infection except \nSelect and explain. \nA. Omeprazole, B. Metronidazole, C. Amoxicillin, D. Mosapride', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e. Mosapride RECOMMENDED TREATMENT REGIMEN FOR HELICOBACTER PYLORI:Regimen durationDrug 1Drug 2Drug 3Drug 4First line treatmentRegimen 1OCA (7 days) Regimen 2OCM (2 days)OmeprazoleOmeprazoleClarithromycinClarithromycinAmoxicillinMetronidazole--Second line treatmentRegimen 3OBTM(14days)OmeprazoleBismuthTetracyclineMetronidazole", 'role': 'assistant'}]