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 movement of bone in response to its own growth is termed as: \nSelect and explain. \nA. Rotation, B. Secondary displacement, C. Primary displacement, D. Differentiation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]