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': 'Twin pregnancy, but due to two different men is called: NEET 14 \nSelect and explain. \nA. Superfetation, B. Superfecundation, C. Both of the above, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Superfecundation', 'role': 'assistant'}]