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': 'Maximum oogonia can be seen In ovaries at \nSelect and explain. \nA. 7th month of intrauterine life, B. 5th month of intrauterine life, C. At birth, D. At puberty', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Oogonia multiply in large numbers by mitosis averaging about\xa06-7 million around 18-20 weeks\xa0of intrauterine life', 'role': 'assistant'}]