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': 'Lymphnode metastasis is a common feature with the following variant of soft tissue sarcoma: \nSelect and explain. \nA. Fibrosarcoma, B. Angiosarcoma, C. Liposarcoma, D. Neurofibrosarcoma', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans is 'b' i.e., Angiosarcoma", 'role': 'assistant'}]