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: Pediatrics
[{'content': 'A 5–year old boy presents with pubic hair development. He is tall and has increased pigmentation of his genitalia and phallic enlargement. Blood pressure is 130/90 mm g. Measurement of which of the following diagnostic? hormones would be most likely to be diagnostic? \nSelect and explain. \nA. Increase 17 beta hydroxyl progesterone, B. Increase cortisol, C. Increase aldosterone, D. Increase 11 deoxycortisol', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Presence of Precocious puberty in a male child and hypertension (BP of 130/80 in a 5-year-old child is considered hypertension) suggests a diagnosis of congenital adrenal Hyperplasia due to 11-β Hydroxylase deficiency.\nlevels and excretion of 11 deoxycortisol are increased.', 'role': 'assistant'}]