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': 'In restraining of child everything involved except \nSelect and explain. \nA. Avoidance, B. Discrimination, C. Pedi wrap and papoose board, D. Aversive conditioning', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]