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
True in Asthma: 
Select and explain. 
A. Increased FRC Reduced Residual Volume, B. Increased FRC Increased Residual Vol, C. Reduced FRC Reduced Residual Volume, D. Reduced FRC Increased Residual Volume
B: Increased FRC Increased Residual Vol
Answer: B: Increased FRC Increased Residual Vol 
Explanation: Ans. B- Increased FRC Increased Residual VolDiseases that REDUCE compliancea. Fibrosisb. Pulmonary hypertension/congestionc. Alveolar atelectasisd. Reduced surfactant (increased surface tension) e.g. artificial ventilation, prematurityDiseases that INCREASE compliance:a. Pulmonary emphysema (alteration in elastic tissue) > static compliance is Increased but dynamic compliance is reduced.b. Normal ageing (alteration in elastic tissue)c. Asthma (reason unknown).