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': 'Most common presentation in anencephaly is : \nSelect and explain. \nA. Breech, B. Face, C. Brow, D. Shoulder', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Face', 'role': 'assistant'}]