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: Pathology
chemical burn can be caused by: 
Select and explain. 
A. Aspirin, B. Silver nitrate, C. H2O2, D. All of the above.
D: All of the above.
Answer: D: All of the above. 
Explanation: None