This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
The tissue of origin of the Kaposi's sarcoma is - 
Select and explain. 
A. Lymphoid, B. Vascular, C. Neural, D. Muscular
B: Vascular
Answer: B: Vascular 
Explanation: It is an indolent, multifocal, nonmetastatic mucosal or cutaneous tumor probably of endothelial origins REF:ANANTHANARAYANAN TEXTBOOK OF MICROBIOLOGY 9EDITION PGNO.576