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: Medicine
Which one of the following colonic polyps is not malignant? 
Select and explain. 
A. Juvenile polyps, B. Hamaomatous polyposis associated with Peutz-Jeghers Syndrome, C. Villous adenomas, D. Tubular adenomas
A: Juvenile polyps
Answer: A: Juvenile polyps 
Explanation: Juvenile poyps have no malignant potential. All other conditions mentioned above are associated with increased risk of malignancy. So juvenile polyps is the single best answer of choice. Ref: Current Surgical Diagnosis and Treatment By Gerard M.Dohey, 12th Edition, Pages 682, 707.