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
Specific lung compliance is decreased in all except 
Select and explain. 
A. Pulmonary congestion, B. Chronic bronchitis, C. Pulmonary fibrosis, D. Decreased surfactant
B: Chronic bronchitis
Answer: B: Chronic bronchitis 
Explanation: None