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 amount of powder in zinc phosphate cement mixture will cause 
Select and explain. 
A. Decreased strength, B. Decreased film thickness, C. Decreased solubility, D. Increased setting time
C: Decreased solubility
Answer: C: Decreased solubility 
Explanation: None