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 -a) Animal fat consumptionb) Familial adenomatous polyposisc) Ulcerative colitisd) Crohn' s diseasee) TB 
Select and explain. 
A. abce, B. abcd, C. acde, D. abde
B: abcd
Answer: B: abcd 
Explanation: None