This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
Interpret the below plain Xray abdomen 
Select and explain. 
A. Duodenal atresia, B. Annular pancreas, C. Ladd's band, D. All of the above
A: Duodenal atresia
Answer: A: Duodenal atresia 
Explanation: .