This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'A tumor arising in a burns scar is likely to be \nSelect and explain. \nA. Basal cell carcinoma, B. Squamous cell carcinoma, C. Malignant melanoma, D. Fibrosarcoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Tumor rising from burns scar is marjolins ulcer Marjolin&;s ulcer refers to an aggressive ulcerating squamous cell carcinoma presenting in an areas of previously traumatized,chronically inflamed, or scarred skin.', 'role': 'assistant'}]