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
Vital capacity is decreased, timed vital capacity (FEV 1.0 %) is normal in: 
Select and explain. 
A. Bronchial asthma, B. Scoliosis, C. Chronic bronchitis, D. Acute bronchitis
B: Scoliosis
Answer: B: Scoliosis 
Explanation: Vital capacity and timed vital capacity (TVC) are reduced greatly in respiratory diseases like Asthma, Emphysema, Pneumonia, etc.
In scoliosis, vital capacity is reduced, but TVC is normal.