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': 'Slow or soft start polymerization is seen in \nSelect and explain. \nA. L.E.D. light cure units, B. Laser light cure units, C. Quartz-Tungsten-Halogen Light cure units, D. PAC light cure units', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]