This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
[{'content': 'In renal transplant recipients which is likely organism coursing reactivation dis within I 4 months after surgery \nSelect and explain. \nA. EBV, B. CMV, C. HSV, D. VZV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Cmv is the viral agent causing oppounistic disease especially b/w 1-4 months after surgery 3 in transplant recipients ref : ananthanaryana', 'role': 'assistant'}]