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 children, the most common lesion in anterior teeth are due to \nSelect and explain. \nA. Nursing bottle caries, B. Dental trauma, C. Malformation of tooth, D. Discolouration', 'role': 'user'}, {'content': 'Answer: A \nExplanation: - In children, the most common lesion in anterior teeth are due to nursing bottle caries.\n- These lesions begin on the labial surface of all anterior and they progress rapidly as diffused demineralization of the entire surface of all existing teeth.', 'role': 'assistant'}]