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': 'Each quadrant of the adult mouth holds ___ incisors, ___ canines, ___ premolars, and ___ molars. \nSelect and explain. \nA. 1, 2, 3, 2, B. 1, 2, 2, 3, C. 2, 1, 3, 2, D. 2, 1, 2, 3', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D:\xa0There are 32 teeth in the normal adult mouth, located in the mandible and\xa0maxillae.\nThe teeth can be divided into quadrants: right upper, left upper, right lower, and left lower. In adults, each quadrant contains one central and one lateral incisor; one canine; first and second premolars; and first, second, and third molars.', 'role': 'assistant'}]