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
False about annular pancreas 
Select and explain. 
A. Associated with down syndrome, B. Bilious vomiting, C. Treatment is duodeno-duodenostomy, D. Diagnosis is by ERCP
B: Bilious vomiting
Answer: B: Bilious vomiting 
Explanation: Non bilious voimiting is seen in annular pancreas.