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: Pathology
[{'content': 'In the intra-epithelial region of the mucosa of intestine the predominant cell population is that of \nSelect and explain. \nA. B cell, B. T-cells, C. Plasma cells, D. Basophils', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., T-cellsAround 15% of the cells in the small intestinal epithelium are lymphocytes. These Intraepithelial lymphocytes (IEL) are viually all T lymphocytes but, unlike other T cells, most express the CD8 subset marker.The functions of this large populations of T cells are unknown.", 'role': 'assistant'}]