This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Anatomy
[{'content': 'Feilisation of a second ovum in a woman who is already pregnant is called \nSelect and explain. \nA. Superfecundation, B. Superfoetation, C. Pseudocyesis, D. Fraternal twins', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Superfoetation This means the feilisation of a second ovum in a woman who is already pregnant. Later, two fetuses are born at the same time showing different stages of development. According to some, this is because one fetus is getting more blood supply and nutrition than the other. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 333', 'role': 'assistant'}]