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
A 3-year-old child reports with fever. He has reddish
yellow ulcers of the facial mucosa and tongue. He is most
probably suffering from: 
Select and explain. 
A. Erosive lichen planus, B. Acute herpetic gingivostomatitis, C. ANUG, D. Leukemia
B: Acute herpetic gingivostomatitis
Answer: B: Acute herpetic gingivostomatitis 
Explanation: None