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
Which of the following can lead to gnawing radiating pain? 
Select and explain. 
A. Herpetic stomatitis, B. ANUG, C. Chronic Periodontitis, D. None
B: ANUG
Answer: B: ANUG 
Explanation: None