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
Chemokine co-receptor for HIV found on macrophage is - 
Select and explain. 
A. CD4, B. CD8, C. CCR5, D. CXCR4
C: CCR5
Answer: C: CCR5 
Explanation: CXCR4 for T cell tropic HIV strain&CCR5 for macrophage tropic strain REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.574