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': 'Complication to PEEP include all except ? \nSelect and explain. \nA. Pulmonary edema, B. Emphysema, C. Cardiogenic shock, D. Pneumonia', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Emphysema", 'role': 'assistant'}]