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': 'Premature adrenarche is growth of axillary and pubic hair prior to the age \nSelect and explain. \nA. 6 years, B. 8 years, C. 10 years, D. 12 years', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Premature adrenarche is defined as growth of axillary and pubic hair prior to age of 8 years.', 'role': 'assistant'}]