This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bleeding Disorders, Subject name: Pathology
[{'content': 'Most common cause of DIC \nSelect and explain. \nA. Obstetric complications, B. Cyanotic heart disease, C. Malignancies, D. Extensive bums', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Obstetric complications(Ref: Harrison 18th ed/pg 1390)The most common causes are bacterial sepsis, malignant disorders such as solid tumors or acute promyelocytic leukemia, and obstetric causes. DIC is diagnosed in almost one-half of pregnant women with abruptio placentae, or with amniotic fluid embolism', 'role': 'assistant'}]