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
For ZnOE, all of the following are true EXCEPT: 
Select and explain. 
A. Olive oil is used as a plasticizer, B. Addition of methylmethacrylate increases strength., C. Addition of o – EBA in the concentration of 37 – 50 % increases strength, D. Rosin decreases the brittleness of set cement
C: Addition of o – EBA in the concentration of 37 – 50 % increases strength
Answer: C: Addition of o – EBA in the concentration of 37 – 50 % increases strength 
Explanation: None