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
Material used for Direct Pulp Capping (DPC): 
Select and explain. 
A. Calcium hydroxide, B. Resin bonding agents, C. Corticosteroids, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Materials used for Direct Pulp Capping (DPC):

Calcium hydroxide
Isobutyl cyanoacrylate
Resin bonding agent
Antibiotics
Corticosteroids