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': 'Treatment of congenital adrenal hyperplasia includes all except \nSelect and explain. \nA. Dexamethasone is drug of choice given prenatally to all mothers as prophylaxis, B. Prenatal treatment poses risk of failure to thrive, C. Treatment should be given to only those mothers with an affected female child, D. In newborn hydrocortisone is given upto childhood period', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Dexamethasone is the drug of choice for congenital adrenal hyperplasia. It should be given to prevent fetal female genital virilisation, to only those mothers with an affected female child.', 'role': 'assistant'}]