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: Pathology
[{'content': 'The following are seen in chronic obstructive pulmonary disease (COPD) Except - \nSelect and explain. \nA. Hemoptysis, B. Cor Pulmonale, C. Pneumothorax, D. Aplastic anemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Chronic obstructive pulmonary disease (COPD) is a disease of the lung in which the airways become narrowed. This leads to a limitation of the flow of air to and from lungs causing shortness of breath.\nCOPD includes -\n\n\nEmphysema\nChronic bronchitis\nSmall airway disease\n\nComplication include:\n\nAcute bronchitis\nPneumonia\nPulmonary hypertension\nCor pulmonale\nChronic respiratory failure\nSpontaneous pneumothorax (in a fraction of patients with emphysema)\nHemoptysis (in chronic bronchitis)', 'role': 'assistant'}]