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
[{'content': 'Which of the following test is not a test for helicobacter pylori infection? \nSelect and explain. \nA. Fecal antigen test, B. Barium swallow, C. Microbiological culture, D. Rapid rease test', 'role': 'user'}, {'content': 'Answer: B \nExplanation: <p>Division&;s principles and practice of medicine 22nd edition. *non invasive tests-serology ,urea breath test ,fecal antigen test. Invasive tests-histology,rapid urease test,microbiological culture.</p>', 'role': 'assistant'}]