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': 'Superfecundation is \nSelect and explain. \nA. Fertilisation of two ova discharged within same menstrual cycle, by two different acts of coitus, B. Fertilisation of two ova discharged from ovary at different periods of ovulation, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Optios b is superfetation.', 'role': 'assistant'}]