This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Prepyloric or channel ulcer in the stomach is termed as \nSelect and explain. \nA. type 1, B. type 2, C. type 3, D. type 4', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Type 1- in the antrum, near the lesser curvature, type 2: combined gastric ulcer (in the body ) with duodenal ulcer, type 3. Prepyloric, type 4 gastric ulcer in the proximal stomach of the cardia type 5- ulcer anywhere associated with NSAIDs. SRB edition 5 page no. 824', 'role': 'assistant'}]