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 receptor through which M-tropic HIV strains bind- 
Select and explain. 
A. CCR 5, B. CXR4, C. CXCR5, D. Any of the above
A: CCR 5
Answer: A: CCR 5 
Explanation: voteceptor CCR5 for macrophage tropical strain REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.574