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': 'Which of the following conditions commonly progress to cor pulmonale - \nSelect and explain. \nA. Pulmonary thromboembolism, B. Bronchial asthma, C. COPD, D. Airway foreign body', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]