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': 'The structure derived from the right aortic arch \nSelect and explain. \nA. Right common carotid artery, B. Right sunclavian artery, C. Aortic arch, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]