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 among the following is not pre-malignant ? 
Select and explain. 
A. Ulcerative colitis, B. Peutz-jeghers syndrome, C. Villous adenoma, D. Familial adenomatoses polyopsis
B: Peutz-jeghers syndrome
Answer: B: Peutz-jeghers syndrome 
Explanation: Ans. is 'b' i.e., Peutz-jeghers syndrome