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: Surgery
[{'content': 'The artery commonly involved in cirsoidaneurysm is - \nSelect and explain. \nA. Occipital, B. Superficial temporal, C. Internal carotid, D. External carotid', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]