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
Parietal abscess is also known as 
Select and explain. 
A. Gingival abscess, B. Periodontal abscess, C. Periapical abscess, D. Periodontal cyst
B: Periodontal abscess
Answer: B: Periodontal abscess 
Explanation: None