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: Anatomy
[{'content': 'Arterial supply of Submandibular gland \nSelect and explain. \nA. Lingual artery., B. Facial artery., C. ECA, D. Sublingual arteries.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]