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
The base indicated below composite for shallow preparations: 
Select and explain. 
A. ZOE, B. RMGIC, C. Zinc phosphate, D. Calcium hydroxide
B: RMGIC
Answer: B: RMGIC 
Explanation: Resin Modified GIC is used as a base below the composites, as using eugenol containing bases cause retardation of the polymerization reaction.