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
Increased size of filler particle in composite: 
Select and explain. 
A. Increases strength, B. Decreases surface roughness, C. Increases exposure time, D. decreases viscosity
A: Increases strength
Answer: A: Increases strength 
Explanation: None