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 is the material of choice to be given in class V cavities: \nSelect and explain. \nA. Silicate cement, B. Polycarboxylate cement, C. Glass ionomer cement, D. Unfilled resin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]