This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Surgery
[{'content': 'The best predictor of prognosis in congenital diaphragmatic hernia \nSelect and explain. \nA. Pulmonary hypeension, B. Gestational age at which baby is born, C. Time of surgery, D. Size of the herniated sac', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pulmonary hypoplasia and immaturity of the lungs remain the leaden cause of death, from pulmonary hypeension (right-to-left shunting) with resultant hypoxemia. The best predictor of prognosis in congenital diaphragmatic hernia Pulmonary hypeension.', 'role': 'assistant'}]