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
HIV associated gingivitis is best described by the term? 
Select and explain. 
A. Juvenile gingivitis, B. Acute necrotising gingivitis, C. Linear gingival erythema, D. Necrotising ulcerative gingivitis
C: Linear gingival erythema
Answer: C: Linear gingival erythema 
Explanation: None