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
Ramsted's operation is for - 
Select and explain. 
A. Duodenal atresia, B. Volvulus of small intestine, C. Anorectal malformation, D. Congenital pyloric stenosis
D: Congenital pyloric stenosis
Answer: D: Congenital pyloric stenosis 
Explanation: Ans. is 'd' i.e., Congenital pyloric stenosis