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: Pathology
[{'content': '60 yr old male presented with dysphagia. The mucosal biopsy is provided here which shows? \nSelect and explain. \nA. Squamous metaplasia, B. Columnar metaplasia, C. Anaplasia, D. Connective tissue metaplasia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Goblet cells are seen in the columnar epithelium, identified by distinct mucous vacuoles that stain pale blue by hematoxylin and eosinBarrett&;s oesophagus is characterized by the replacement of the normal stratified squamous epithelium lining of the esophagus by simple columnar epithelium with goblet cells (intestinal metaplasia).Robbins 9th edition pg: 757', 'role': 'assistant'}]