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': 'Why GIC is the best restorative material in children? \nSelect and explain. \nA. High strength, B. Good marginal integrity, C. It can bond to both enamel & dentin, D. It has less occlusal wear', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Glass ionomer cement bonds to the tooth structure by means of an ionic bond between the carboxyl group of polyacrylic acid (liquid) and calcium of the enamel and dentin.\nReference: Materials Used in Dentistry, S mahalaxmi first ed page no\xa012', 'role': 'assistant'}]