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: Surgery
Which of the following will cause oral cancers? 
Select and explain. 
A. Syphilitic glossitis, B. EBV, C. НPV, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: EBV, HPV and syphilis will cause oral cancers.