This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: dermatology and infectious disease, Subject name: Pathology
EBV infects B cells binding to 
Select and explain. 
A. CD 21, B. CD 40, C. CD 79a, D. CD 23
A: CD 21
Answer: A: CD 21 
Explanation: CD21- EBV uses this receptor to bind and infect B cellsReference: Robbins; 9th edition; Volume I; Page no: 327