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: Microbiology
Kaposis sarcoma is caused by: 
Select and explain. 
A. HIV, B. HPV, C. HHV8, D. CMV
C: HHV8
Answer: C: HHV8 
Explanation: HHV8