This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vascular surgery, Subject name: Surgery
[{'content': 'Surgical blade number useful for aeriotomy is \nSelect and explain. \nA. 10, B. 11, C. 15, D. 22', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Surgical blade for aeriotomy is 11 Minor surgical procedures- 15 Abdominal incisions- 22 Reference: Bailey and love, 27th edition, page:85', 'role': 'assistant'}]