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': 'Acid base based polyacrylic cements have most \nimportant property of \nSelect and explain. \nA. Bio adhesion, B. Reparative dentin formation, C. Bond strength, D. Severe irritant to pulp', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]