This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'The placenta is anchored to the myometrium partially or completely without any intervening decidua is called : \nSelect and explain. \nA. Placenta accreta, B. Placenta increta, C. Placenta succenturiate, D. Placenta percreta', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Placenta increta', 'role': 'assistant'}]