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': 'Paramesonephric ducts develop at \nSelect and explain. \nA. 4 weeks of gestation, B. 6 weeks of gestation, C. 8 weeks of gestation, D. 10 weeks of gestation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Paramesonephric ducts develop from invagination of intermediate mesoderm at 6th week of gestation.', 'role': 'assistant'}]