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
Periodontal abscess is formed in 
Select and explain. 
A. Periapical area, B. Alveolar bone laterally, C. Periodontal ligament laterally, D. All of the above
C: Periodontal ligament laterally
Answer: C: Periodontal ligament laterally 
Explanation: None