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': 'which type of resin tags contribute more to bonding: \nSelect and explain. \nA. Micro resin tags, B. Nano resin tags, C. Macro resin tags, D. No effect of size of resin tags for bonding.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]