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': 'Doubling the force applied at the bracket of a tooth would have what effect on the moment affecting tooth movement? \nSelect and explain. \nA. The moment would decrease by 50%., B. The moment would not change., C. The moment would double., D. The moment would increase by 4 times.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Since M = Fd, doubling the force would double the moment, or tendency to rotate, tip, or torque.', 'role': 'assistant'}]