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': 'True about H. Pylori is all except - \nSelect and explain. \nA. It splits urea & produces ammonia to survive, B. Produces Gastric Ca, C. Gram -ye curved rods, D. Cag-A gene is not associated with-risk of duodenal ulcer', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]