This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small Intestine - Congenital Abnormalities, Subject name: Surgery
Remenant vitello intestinal duct causes - 
Select and explain. 
A. Patenturachus, B. Meckel's diverticulum, C. Umbilical granuloma, D. Omphalocele
B: Meckel's diverticulum
Answer: B: Meckel's diverticulum 
Explanation: Ans. is 'b' i.e., Meckel's diverticulum