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': 'Anencephaly is associated with the following factor : \nSelect and explain. \nA. Hydramnios, B. Postmaturity, C. Prematurity, D. All of these', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All of these', 'role': 'assistant'}]