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
[{'content': 'Pulmonary compliance is decreased in all of the following conditions, except \nSelect and explain. \nA. Pulmonary Congestion, B. COPD, C. Decreased Surfactant, D. Pulmonary Fibrosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Pulmonary compliance is increased in emphysema (a type of chronic obstructive pulmonary disease). In the other 3 conditions (Decreased surfactant production, Pulmonary congestion, and Pulmonary fibrosis), the pulmonary compliance is decreased. Ref: guyton and hall textbook of medical physiology 12 edition page number:318,319,320', 'role': 'assistant'}]