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': 'Use of dimethyl-P-toluidine is indicated for \nSelect and explain. \nA. Thermal polymerization of acrylic, B. Chemical polymerization, C. Retarding the polymerization reaction, D. To inhibit the action of benzoyl peroxide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]