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
[{'content': "Meckel's diveiculum, true are A/E : \nSelect and explain. \nA. Has three layers with aery, B. Heterotopic epithelium in 50-60% cases, C. Always gastric epithelium, D. May present with hemorrhage", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e. Always gastric epithelium", 'role': 'assistant'}]