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': 'Physiological effects of emphysema may include all of the following, except \nSelect and explain. \nA. Increased vital capacity, B. Irregular ventilation, C. Impaired gas diffuse, D. Pulmonary hypeension', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Emphysema is a pathological condition of the lungs marked by an abnormal increase in the size of the air spaces, resulting in labored breathing and an increased susceptibility to infection. It can be caused by irreversible expansion of the alveoli or by the destruction of alveolar walls.Ref: Ganong&;s review of medical physiology, 23ed edition page no: 595', 'role': 'assistant'}]