This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gonads, Subject name: Pediatrics
[{'content': 'Precocious puberty in girl age limit - \nSelect and explain. \nA. 8 year, B. 10 year, C. 9 year, D. 11 year', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 8 year o precocious puberty is defined as appearence of secondary' sexual character before 8 year of age in girl and 9.5 year of age (Nelson says 9 year) in bodys.o Thelarche = Isolated breast development.o Premature, Pubarche/Adrenarche - Appearance of sexual hair before age of 8 year in girl and before 9 year is boys without other evidence maturation.o Premature menarche - Isolated uaginal bleeding in the absence of other secondary sexual charater.", 'role': 'assistant'}]