This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Anatomy
[{'content': 'Thickening of the respiratory membrane is seen in \nSelect and explain. \nA. A. Asthma, B. B. Emphysema, C. C. Empyema, D. Bronchiectasis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Thickening of the airway wall is a feature of airways remodeling and is seen in asthma A condition in which a person's airways become inflamed, narrow and swell and produce extra mucus, which makes it difficult to breathe.", 'role': 'assistant'}]