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: Medicine
Kaposi's sarcoma is caused by- 
Select and explain. 
A. HHV-5, B. HHHV -5, C. HHV-7, D. HHV-8
D: HHV-8
Answer: D: HHV-8 
Explanation: None