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
Acid base based polyacrylic cements have most 
important property of 
Select and explain. 
A. Bio adhesion, B. Reparative dentin formation, C. Bond strength, D. Severe irritant to pulp
A: Bio adhesion
Answer: A: Bio adhesion 
Explanation: None