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
Treatment of acute herpetic gingivostomatitis include : 
Select and explain. 
A. Corticosteroids to reduce inflammation, B. Penicillin, C. Local antibiotic application, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: None