This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral Cavity, Subject name: ENT
[{'content': 'Crypts are seen in \nSelect and explain. \nA. Tonsils, B. Adenoids, C. Lymph nodes, D. Parotids', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) TonsilsRef: Dhingra's ENT 6th ed.l 257-58* Crypts are inward folding of the mucosa which are found in tonsils and they increase the surface area.* Crypts are also seen in small intestine.", 'role': 'assistant'}]