This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Large intestine, Subject name: Surgery
[{'content': 'Which of the following drug is used in adjuvant setting in carcinoma colon? \nSelect and explain. \nA. Bevacizumab, B. Cetuximab, C. Irinotecan, D. Oxaliplatin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Carcinoma colon: Adjuvant setting - FOLFOX-IV Fol-folinic Acid (leucovorin) F-5-FU OX - Oxaliplatin Metastatic colorectal cancer:- FOLFIRI: Only given in metastatic colorectal cancer Fol-Folinic Acid F-5-FU IRI - Irinotecan- BEVACIZUMAB- CETUXIMAB- IRINOTECAN', 'role': 'assistant'}]