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: Unknown
A 22-year-old G3P2 presented with profuse bleed after a normal spontaneous vaginal delivery.Physical exam reveals a boggy uterus, and a bedside sonogram indicates the presence of placental tissue.Most probable diagnosis is. 
Select and explain. 
A. Succenturiate placenta, B. Vasa previa, C. Placenta previa, D. Membranaceous placenta
A: Succenturiate placenta
Answer: A: Succenturiate placenta 
Explanation: Succenturiate placenta refers to placenta with additional lobe and this lobe is located a few centimeters away from main lobe and it may be left behind after delivery and may present with PPH