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
Which of the following is true about risk factor for malignancy in polyp 
Select and explain. 
A. Pedunculated polyp, B. Villous polyp, C. Tubular polyp, D. Single polyp
B: Villous polyp
Answer: B: Villous polyp 
Explanation: Villous polyp is more pre malignant than tubular polyp.