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: Physiology
[{'content': 'Vital capacity is decreased, timed vital capacity (FEV 1.0 %) is normal in: \nSelect and explain. \nA. Bronchial asthma, B. Scoliosis, C. Chronic bronchitis, D. Acute bronchitis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Vital capacity and timed vital capacity (TVC) are reduced greatly in respiratory diseases like Asthma, Emphysema, Pneumonia, etc.\nIn scoliosis, vital capacity is reduced, but TVC is normal.', 'role': 'assistant'}]