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': 'Anterior choroidal artery is a branch of which of the following? \nSelect and explain. \nA. Retinal artery, B. External carotid artery, C. Internal carotid artery, D. Middle meningeal artery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Anterior choroidal artery is a branch of the internal carotid artery.', 'role': 'assistant'}]