This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'A patient on NSAIDS with gastric ulcer and H. pylori infection - the treatment of choice is: \nSelect and explain. \nA. H. pylori eradication, B. No need for eradication, C. Check after 8 weeks and let patient continue with NSAIDS, D. Check after 16 weeks and let patient continue with NASAIDS', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]