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
Examination of mouth of a patient with HIV/AIDS may commonly reveal 
Select and explain. 
A. Macroglossia, B. Periodontal diseases, C. Loss of sensation of taste, D. Red tongue
B: Periodontal diseases
Answer: B: Periodontal diseases 
Explanation: None