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
Predisposing factors for colon ca are - 
Select and explain. 
A. Animal fat consumption, B. Familial adenomatous polyposis, C. Ulcerative colitis, D. All
D: All
Answer: D: All 
Explanation: Answer 'a' i.e. Animal fat consumption; 'b' i.e. Familial adenomatous polyposis; 'c' i.e. Ulcerative colitis