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: Medicine
[{'content': 'Pulm edema associated with normal PCWP is observed, which of these is not a cause - \nSelect and explain. \nA. High altitude, B. Cocaine overdose, C. Post cardiopulmonary bypass, D. Bilateral renal artery stenosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]