This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Not associated with fat necrosis \nSelect and explain. \nA. Liposuction, B. Radiotherapy, C. Mammoplasty, D. Carcinoma breast', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .Radiotherapy is used in bone metastasis, brain secondaries, to prevent paraplegia in spine involvement, and advanced axillary nodes. It is also used in painful bone secondaries,in case of carcinoma of breast. ref:SRB&;S manual of surgery,ed 3,pg no 455', 'role': 'assistant'}]