This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
[{'content': 'Which of the following is most commonly implicated in cervical carcinoma \nSelect and explain. \nA. HPV 16, B. HPV 18, C. HPV 31, D. HPV 36', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Cancer of the cervix is most commonly caused by 2 types of HPV - 16,18 Among them HPV16 is more common Ref : Internet sources Human papillomavirus types 16 and 18 and the prognosis of ... - NCBI.', 'role': 'assistant'}]