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: Microbiology
[{'content': 'True about H. pylori \nSelect and explain. \nA. Gram +ve spiral organism, B. It is a protozoa, C. Causes chronic gastritis in adults due to re-infection, D. Treatment causes regression of gastric lymphoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]