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: Surgery
[{'content': "Peu d'orange is due to \nSelect and explain. \nA. Skin metastasis, B. Lymphatic obstruction, C. Thrombophlebitis, D. All of the above", 'role': 'user'}, {'content': 'Answer: B \nExplanation: It is due to lymphatic obstruction and edema.', 'role': 'assistant'}]