This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical Illness Complicating Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'All the following can cause DIC during pregnancy, except: \nSelect and explain. \nA. Diabetes mellitus, B. Amniotic fluid embolism, C. Intrauterine fetal death, D. Abruptio placentae', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Obstetric Complications and Trigger Factors for DIC: Endothelial Injury Release of Thromboplastin Release of Phospholipids Preeclampsia, eclampsia, HELLP Hypovolemia Septicemia Septic aboion Chorioamnionitis Amniotic fluid embolism IUFD Abruptio placentae Intra-amniotic hypeonic saline Incompatible blood transfusion', 'role': 'assistant'}]