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: Dental
[{'content': 'Which of the following will be most severely affected tooth from nursing caries? \nSelect and explain. \nA. Mandibular canines, B. Mandibular 2nd  molars, C. Maxillary incisors, D. Mandibular incisors', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Maxillary incisors are among first teeth to erupt and are least protected by saliva and hence these are the most severely affected teeth.', 'role': 'assistant'}]