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': 'Thickening of pulmonary alveolar - capillary membrane is seen in : \nSelect and explain. \nA. Asthma, B. Bronchitis, C. Pulmonary fibrosis, D. Emphysema', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Pulmonary fibrosis): Pulmonary Alveolar -- capillary membrane thickening is a characteristic feature of interstitial lung disease like pulmonary fibrosis', 'role': 'assistant'}]