This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rectum, Subject name: Surgery
[{'content': 'Treatment of squamous anal carcinoma is: \nSelect and explain. \nA. Abdomino perineal resection, B. Laser, C. Chemoradiotherapy, D. Platinum based chemotherapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) ChemoradiotherapyRef: Page 1266/ Bailey 26th editionNigro Regimen:* Chemo radiation is the latest treatment for squamous cell cancer.* Chemotherapy used are- 5FU + Mitomycin or Cisplatin', 'role': 'assistant'}]