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 is true in case of AIDS patient? 
Select and explain. 
A. Acute pain, B. Diffuse red lesion of the attached gingiva, C. Gingiva covered with pseudomembrane, D. Gingival itching
B: Diffuse red lesion of the attached gingiva
Answer: B: Diffuse red lesion of the attached gingiva 
Explanation: None