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
Multifocal tumor of vascular origin in a patient of AIDS? 
Select and explain. 
A. Kaposi sarcoma, B. Astrocytoma, C. Gastric Carcinoma, D. Primary CNS lymphoma
A: Kaposi sarcoma
Answer: A: Kaposi sarcoma 
Explanation: kaposi sarcoma commonly seen in patient with AIDS REF:ANANTHANARAYANAN TEXT BOOK OF MICROBIOLOGY 9EDITION PGNO.576