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': 'Fetal alcohol syndrome is characterized by \nSelect and explain. \nA. Large palpebral fissures, B. Thin vermillion border, C. Macrosomia, D. Hyperplastic philtrum', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fetal alcohol syndrome - dysmorphic facies\n\nSmall palpebral fissure\nThin vermillion border\nMicrosomia\nHypoplastic phltrum.', 'role': 'assistant'}]