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': 'An early prepubertal growth spurt indicates: \nSelect and explain. \nA. Longer treatment time, B. Fast maturing child, C. Slow maturing child, D. An endocrine dysfunction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]