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: Anatomy
[{'content': 'In a female child at bih oocyte is in a stage of \nSelect and explain. \nA. Anaphase 2nd meiotic, B. Prophase 1st meiotic, C. Oogony, D. Maturation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B. i.e. Prophase 1st meiotic', 'role': 'assistant'}]