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: Pathology
[{'content': 'In gastric outlet obstruction in a peptic ulcer patient, the site of obstruction is most likely to be:- \nSelect and explain. \nA. Antrum, B. Duodenum, C. Pylorus, D. Fundus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Peptic ulcer disease , Carcinoma of the stomach - can result in Gastric outlet obstruction Peptic ulcer disease, MC site of obstruction - Duodenum Carcinoma of stomach, MC site of obstruction - Pyloric region of stomach - Most common cause of Gastric Outlet Obstruction in adult patient - Carcinoma of the stomach.', 'role': 'assistant'}]