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 used to classify Pulmonary adenocarcinoma? \nSelect and explain. \nA. Parkland classification, B. Waterston's classification, C. Chicago classification, D. Noguchi's classification", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]