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: ENT
[{'content': 'Arterial supply of tonsil is mainly - \nSelect and explain. \nA. Tonsillar branch of facial artery, B. Maxillary artery, C. Middle meningeal artery, D. External carotid artery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Tonsillar branch of facial artery is the main arterial supply of tonsils.', 'role': 'assistant'}]