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
Commonest site of intestinal atresia is in the - 
Select and explain. 
A. Duodenum, B. Jejunum, C. Ileum, D. Colon
A: Duodenum
Answer: A: Duodenum 
Explanation: None