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 most commonly used alloy in dentistry (Read the following table and answer the question) \nSelect and explain. \nA. Type I, B. Type II, C. Type III, D. Type IV', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]