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': 'In the age group of 7-12 years, most commonly involved teeth by dental trauma: \nSelect and explain. \nA. Incisors, B. Canine, C. Premolar, D. Molars.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]