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': 'Alloyed form of direct gold restoration is: \nSelect and explain. \nA. Goldent, B. Mat gold, C. Electralloy, D. laminated gold foil', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]