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: Forensic Medicine
[{'content': 'During rape on a virgin, rupture of hymen occurs at the following degree: \nSelect and explain. \nA. 4, B. 6, C. 11, D. 12', 'role': 'user'}, {'content': "Answer: A \nExplanation: Tearing of hymen in a virgin during rape usually occurs posteriorly at the sides, in the 4 or 8 O'clock position, or in the middle line of the hymen. More than two tears are unusual. Tears usually occur in the posterior midline of the hymen because the hymen lies suspended across a potential space, whereas anteriorly the periurethral tissues buttress the hymen. Ref: The Essentials of Forensic Medicine and Toxicology by K S Narayan Reddy, 27th edition, Page 356.", 'role': 'assistant'}]