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': 'All of the following are effects seen when mercury phase exceeds the volume limit EXCEPT? \nSelect and explain. \nA. Decrease in strength, B. Decrease in hardness, C. Decrease in flow, D. Increase in creep', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The mercury phase is the weakest phase in the product mass, and when it exceeds a certain volume limit, there will be a drastic drop in the strength and hardness properties of amalgam, in addition to increase in flow and creep of the restoration.\nReference: Marzouk Operative dentistry, pg-106', 'role': 'assistant'}]