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: Gynaecology & Obstetrics
[{'content': 'Prophylactic surfactant therapy decreases risk of all except \nSelect and explain. \nA. Pneumothorax, B. Bronchopulmonary dysplasia, C. Pneumonitis, D. Pulmonary interstitial emphysema', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Prophylactic surfactant decreases risk of pneumothorax, pulmonary interstitial Emphysema, bronchopulmonary dysplasia.', 'role': 'assistant'}]