This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'In Random flaps, the length to breadth ratio should be no more than \nSelect and explain. \nA. 1:01, B. 1.5:1, C. 2:01, D. 2.5:1', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Random flaps. Three sides of a rectangle, bearing no specific relationship to where the blood supply enters the length to breadth ratio is no more than 1.5:1Axial flaps. Much longer flaps, based on known blood vessels supplying the skin.', 'role': 'assistant'}]