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: Pathology
[{'content': 'Treatment modality carried out for exophytic, radiosensitive, well-oxygenated tumor is: \nSelect and explain. \nA. Surgery, B. Radiation therapy, C. Chemotherapy, D. Combined therapy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Radiation\n\nFor T1 and T2 lesions.\nExophytic radiosensitive and well oxygenated tumors.\nTumors with small cervical metastasis.', 'role': 'assistant'}]