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': 'All of the following are used in the initial management of acute life threatening cardiognenic pulmonary edema, except - \nSelect and explain. \nA. Digoxin, B. Morphine, C. Furosemide, D. Positive Pressure Ventilation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]