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: Pathology
[{'content': 'In Takayasu aeritis, most common aery involved is - \nSelect and explain. \nA. Common carotid aery, B. Subclan aery, C. Renal aery, D. Inferior mesenteric aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: . Subclan aery', 'role': 'assistant'}]