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: Surgery
[{'content': 'Which of the following is not a complication of helicobacter pylori \nSelect and explain. \nA. GERD, B. Peptic ulcer disease, C. Maltoma, D. Chronic gastritis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]