This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pubeal Changes, Subject name: Gynaecology & Obstetrics
[{'content': 'Before pubey, what is the ratio between the cervical length & uterine body? \nSelect and explain. \nA. 1:02, B. 2:01, C. 1:03, D. 1:04', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ratio of cervix : uterus length , Before pubey it is 2: 1 After pubey it is 1: 2', 'role': 'assistant'}]