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 effect of trituration on strength in an amalgam restoration depends on \nSelect and explain. \nA. Amalgam alloy, B. Trituration time, C. Speed of amalgamator, D. All the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]