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': 'First sign of pubey in girls ? \nSelect and explain. \nA. Puberchy, B. Thelarchy, C. Growth spu, D. Menarche', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is b i.e., Thelarchy o In girls, the first visible sign of pubey is the appearance of breast buds (Thelarche), between 8-12 years of age. o In boys the first visible sign of pubey is testicular enlargement, beginning as early as 91/2 yr.', 'role': 'assistant'}]