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': 'What stimulates the gonads in male at 8 week to secret testosterone - \nSelect and explain. \nA. Inhibin from corpus luteum, B. GnRH from hypothalamus of baby, C. Placental HCG, D. All of above', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Placental HCG During embryogenesis, In male embryo, at 6-7 week of gestatin, secretion of first anti-mullerian hormone (also k/o mullerian inhibiting substance) causes regression of mullerian duct. Then at 8-12 week, under influence of Placental HCG, testes staed producing testosterone.", 'role': 'assistant'}]