This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Digestive System, Subject name: Anatomy
[{'content': 'Gall bladder is lined by \nSelect and explain. \nA. Ciliated columnar cells, B. Brush bordered columnar epithelium, C. Striated columnar epithelium, D. Pseudostratified columnar cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Brush bordered columnar epitheliumRef: BDC 6th edny vol. 11/288-89B MICROVILLI* When microvilli are of same height & arranged regularly, they are termed as striated border, as observed in small intestine.* If they are of irregular height, they will constitute the brush border as seen in gall bladder and proximal convoluted tubules of kidney - (Grays anatomy).', 'role': 'assistant'}]