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 effects associated with cold working can be eliminated by a heat treatment called \nSelect and explain. \nA. Age hardening heat treatment, B. Annealing heat treatment, C. Homogenization heat treatment, D. Solution heat treatment', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]