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': "The brushing technique indicated for young children is \nSelect and explain. \nA. Fones method, B. Modified Stillman technique, C. Modified Bass, D. Charter's technique", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]