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: Anatomy
[{'content': 'Stemcells are seen in \nSelect and explain. \nA. Retina, B. Endometrium, C. Base of intestinal crypts, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Sterm cells are located in the lower half (base) of intestinal glands (Crypts of Lieberkuhn).The new epithelial cells are formed from the stem cells, and they migrate upwards and reach the tips of the villi.These cells have rapid turnover and are shed after about every 5 days.', 'role': 'assistant'}]