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: Medicine
[{'content': 'All are true regarding typhoid ulcer EXCEPT: September 2012 \nSelect and explain. \nA. Ileum is the common site, B. Bleeding is common, C. Stricture is usual and causes obstruction, D. Perforation is common', 'role': 'user'}, {'content': "Answer: C \nExplanation: C i.e. Stricture is common and causes obstruction Typhoid ulcers Longitudinal, Ulceration of Peyer's patches, Stricture is rare", 'role': 'assistant'}]