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: Pediatrics
[{'content': 'Most common benign tumours during infancy is – \nSelect and explain. \nA. Lymphangioma, B. Hemangioma, C. Cystic hygroma, D. Lipoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]