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: Radiology
[{'content': 'In which malignancy postoperative radiotherapy is minimally used – \nSelect and explain. \nA. Head and neck, B. Stomach, C. Colon, D. Soft tissue sarcomas', 'role': 'user'}, {'content': 'Answer: B \nExplanation: There is no role of radiotherapy in carcinoma stomach except for palliation of pain.\nIn Head & neck, colon & soft tissue sarcomas RT is given as adjuvant therapy to surgery.', 'role': 'assistant'}]