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: Pharmacology
[{'content': 'Morphine is used in the treatment of which one of the following: \nSelect and explain. \nA. Asthma, B. Kyphoscoliosis, C. Chronic cor pulmonale, D. Left ventricular failure', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]