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': '. Risk factor for Ca Cervix:a) HPVb) Smokingc) Late Menarched) Nulliparitye) Early sexual intercourse \nSelect and explain. \nA. abe, B. bcd, C. cde, D. acd', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]