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 of the following cements is most biocompatible with pulp? \nSelect and explain. \nA. GIC, B. Copper cement, C. Zinc phosphate cement, D. Zinc oxide eugenol cement', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]