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
All of the following are cause of blood in stools in children except - 
Select and explain. 
A. Meckels diveiculum, B. Carcinoma, C. Intussusception, D. Juvenile polyp
B: Carcinoma
Answer: B: Carcinoma 
Explanation: Ans. is 'b' i.e., Carcinoma