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
60 yr old male presented with dysphagia. The mucosal biopsy is provided here which shows? 
Select and explain. 
A. Squamous metaplasia, B. Columnar metaplasia, C. Anaplasia, D. Connective tissue metaplasia
B: Columnar metaplasia
Answer: B: Columnar metaplasia 
Explanation: 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