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
A child dentist manages an uncooperative child by demonstrating
the procedures on another cooperative child. This way of
child management is 
Select and explain. 
A. Modelling, B. Desensitisation, C. Tell show do, D. Aversive conditioning
A: Modelling
Answer: A: Modelling 
Explanation: None