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': 'In utero, the fetal human ovary has capacity to produce oestrogen by \nSelect and explain. \nA. 6 weeks, B. 8 weeks, C. 10 weeks, D. 12 weeks', 'role': 'user'}, {'content': 'Answer: B \nExplanation: By 8 weeks, fetal human ovary has capacity to produce oestrogen.', 'role': 'assistant'}]