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': 'Material used for Direct Pulp Capping (DPC): \nSelect and explain. \nA. Calcium hydroxide, B. Resin bonding agents, C. Corticosteroids, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Materials used for Direct Pulp Capping (DPC):\n\nCalcium hydroxide\nIsobutyl cyanoacrylate\nResin bonding agent\nAntibiotics\nCorticosteroids', 'role': 'assistant'}]