This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Gynae), Subject name: Gynaecology & Obstetrics
[{'content': 'Bleeding is fetal origin in: \nSelect and explain. \nA. Vasa previa, B. Placenta accreta, C. Placenta percreta, D. Placenta increta', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: a (Vasa previa) Ref: Dutta, 6th ed, p. 220In velamentous insertion of cord, umbilical cord is attached to the membranes and not to the placenta.So, when the blood vessels traverse through the membranes overlying internal os, it may be injured during rupture of membranes. Then bleeding will be of fetal origin, called as vasa previa', 'role': 'assistant'}]