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': 'Fouh aoic arch in left gives rise to: \nSelect and explain. \nA. Subclan aery, B. Arch of aoa, C. Maxillary aery, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Arch of aoa', 'role': 'assistant'}]