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': 'Major goals of growth modification always is \nSelect and explain. \nA. to maximize skeletal changes and minimize dental changes, B. to maximize skeletal changes, C. to maximize dental changes, D. to maximize dental changes and minimize skeletal changes', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The major goal of growth modification is to maximize skeletal changes and minimize dental changes produced by treatment.\nEg: Rapid palatal expansion (RPE)\nThe goal of RPE is to expand maxilla by expansion at mid palatal suture (skeletal) and not just expanding the dental arch by moving the teeth relative to the bone (dental).', 'role': 'assistant'}]