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': 'A pt comes with stage III non seminomatous testicular tumor t/t of choice is - \nSelect and explain. \nA. Radiotherapy, B. Chemotherapy, C. Hormonal therapy, D. Surgery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Stage III is tumor spread beyond the retroperitoneal lymph node\nTreatment is primarily chemotherapy', 'role': 'assistant'}]