This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Medicine
In gastric outlet obstruction in a peptic ulcer patient, the site of obstruction is most likely to be: 
Select and explain. 
A. Antrum, B. Duodenum, C. Pylorus, D. Fundus
C: Pylorus
Answer: C: Pylorus 
Explanation: Gastric ulcer leads to gastric outlet obstruction causing pyloric stenosis showing HOUR GLASS STOMACH