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': 'The base indicated below composite for shallow preparations: \nSelect and explain. \nA. ZOE, B. RMGIC, C. Zinc phosphate, D. Calcium hydroxide', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Resin Modified GIC is used as a base below the composites, as using eugenol containing bases cause retardation of the polymerization reaction.', 'role': 'assistant'}]