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': 'At 15 weeks of gestation, increased alpha fetoprotein in amniotic fluid is seen in : \nSelect and explain. \nA. Intrauterine death, B. Down syndrome, C. Turner syndrome, D. Normal pregnancy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Intrauterine death', 'role': 'assistant'}]