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': 'In Barrett&;s oesophagus, lining is \nSelect and explain. \nA. Squamous cell epithelium, B. Transitional cell epithelium, C. Secreting columnar cell epithelium, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: .BARRETT&;S OESOPHAGUS is the metaplastic changes in the mucosa of the oesophagus as the result of GORD. * Squamous epithelium of lower end of the oesophagus is replaced by diseased columnar epithelium (columnar metaplasia). * There is a macroscopical visible length of columnar mucosa with microscopic features of intestinal metaplasia. * It affects lower oesophagus commonly often middle oesophagus also. Ref: SRB&;s manual of surgery,3 rd ed, pg no 744', 'role': 'assistant'}]