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': 'The presence of multifetal gestation and subsequent disappearance of one or more fetuses called \nSelect and explain. \nA. Superfecundation, B. Superfoetation, C. Pseudocyesis, D. Vanishing twin syndrome', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vanishing twin syndrome The presence of multifetal gestation and subsequent disappearance of one or more fetuses. This syndrome has been diagnosed more frequently since the use of sonography in early pregnancy. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 333', 'role': 'assistant'}]