This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'When the death of one fetus in multiple pregnancy occurs early in pregnancy it may manifest as \nSelect and explain. \nA. Fetus papyraceus, B. Vanishing twin, C. Fetus compressus, D. Fetus acardiacus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Death of One Fetus:When this occurs early in pregnancy, it may manifest as a vanishing twin.Fetal death in a slightly more advanced gestation may go undetected until delivery of a normal-appearing live infant along with a dead fetus that is barelyidentifiable. It may be compressed appreciably-fetus compressus, or it may be flattened remarkably through desiccation--fetus papyraceus.Ref: William&;s Obstetrics; 24th edition; Chapter: 45', 'role': 'assistant'}]