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: Physiology
Restrictive lung diseases show: 
Select and explain. 
A. Decreased TLC, B. Decreased RV, C. Decreased VC, D. All
D: All
Answer: D: All 
Explanation: Restrictive lung diseases: it is extra pulmonary,paranchymal or pleural diseases which causes difficulty in expansion of the lung Ref: G K Pal Textbook of Practical Physiology 4th edition page number:165