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': 'The most important consideration in a patient with borderline pulmonary function requiring lung resection is - \nSelect and explain. \nA. The amount of nonfunctioning lung tissue to be removed, B. The amount of functioning lung tissue to be removed, C. Experience of the surgical team, D. Elevated pulmonary artery pressure', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]