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: Anatomy
[{'content': 'Placenta accreta is associated with all except : \nSelect and explain. \nA. Placenta pre, B. Uterine scar, C. Multipara, D. Uterine malformation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Risk factors for placenta accreta : Present placenta pre Previous H/o cesarean section Previous curettage Previous manual removal of placenta Previously treated Asherman syndrome Myomectomy Multiparity Advanced age Ref: Datta Obs 9e pg 394.', 'role': 'assistant'}]