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': 'All are tests used to assess the treatment response in helicobacter pylori infection, EXCEPT: \nSelect and explain. \nA. Urea breath test, the, B. Stool antigen test, C. Biopsy-based tests, D. Serology', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The urea breath test, the stool antigen test, and biopsy-based tests can all be used to assess the success of treatment Ref:Harrisons Principles of Internal Medicine, 18th Edition, Page 1221', 'role': 'assistant'}]