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 includes all except: \nSelect and explain. \nA. Gram positive bacillus, B. Urease positive bacillus, C. Highly associated with deodenal ulcer, D. Urease breath test can be performed only in specialized labs', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is. 'a' i. e., Gram positive bacillus", 'role': 'assistant'}]