This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: viral infection, Subject name: Medicine
Vascular origin neoplasm in patients of AIDS is caused by which of following Organism? 
Select and explain. 
A. CMV, B. HHV-8, C. H1N1, D. HPV
B: HHV-8
Answer: B: HHV-8 
Explanation: Kaposi's sarcoma is a multicentric neoplasm consisting of multiple vascular nodules appearing in the skin, mucous membranes, and viscera in a patient with AIDS It is caused by HHV-8 ( Human herpes virus -8) aka Kaposi's sarcoma-associated herpesvirus (KSHV)