This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Most common viral infection after Kidney Transplantation is: 
Select and explain. 
A. EBV, B. HSV, C. CMV, D. HBV
C: CMV
Answer: C: CMV 
Explanation: Answer is C (CMV): CMV is the most common viral infection after Kidney Transplantation. 'CMV is the single most impoant viral infection in renal transplant recipients'- Critical Care Nephrology