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': 'Properties of fillers can be:\nFillers increases the mechanical properties of composite.\nIt also increases the optical properties of composite.\nIncreases the diagnostic sensitivity of composite.\nDecrease watersorption and Polymerization shrinkage of composite. \nSelect and explain. \nA. 1&2, B. 1,3,4, C. 1,2,3,4, D. 2,3', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]