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': 'Bacterial adhesion on tooth is prevented by: (OR) Actinomycetemcomitans attachment to tooth surface can be prevented by? \nSelect and explain. \nA. Myeloperoxidase, B. Collagenase, C. Lactoperoxidase, D. Lysozyme', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]