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': 'All are causes of Antepaum hemorrhage (APH) except \nSelect and explain. \nA. Placenta pre, B. Abruptio placenta, C. Circumvallate placenta, D. Battledore placenta', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes of APH placenta prae abruptio placenta local causes like polyp,cancer cervix ,varicose veins and local trauma circumvallate placenta vasa prae unclassified or indeterminate haemorrhage (refer pgno:128 sheila textbook of obstetrics 2 nd edition)', 'role': 'assistant'}]