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: Surgery
[{'content': 'Predisposing factors for colon ca are - \nSelect and explain. \nA. Animal fat consumption, B. Familial adenomatous polyposis, C. Ulcerative colitis, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Answer 'a' i.e. Animal fat consumption; 'b' i.e. Familial adenomatous polyposis; 'c' i.e. Ulcerative colitis", 'role': 'assistant'}]