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
Vitremer is? 
Select and explain. 
A. Resin modified GIC, B. Metal modified GIC, C. Organically modified composite, D. Polyacid modified composite
A: Resin modified GIC
Answer: A: Resin modified GIC 
Explanation: None