This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Transplantation, Subject name: Surgery
[{'content': 'The most common complication of immunosuppression is: \nSelect and explain. \nA. Malignancy, B. Graft rejection, C. Infection, D. Thrombocytopenia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) InfectionRef: Bailey 26th edition, Page 1416* Bacterial infection is most common in 1st month and is most common in those who are critically ill before and after transplant.* Viral infection is most common in 6 months--Most common is CMV > HSV* BK virus is universal in childhood causes urinary infection* Pneumocystis Jiroveci (Previously known as Pneumocystis carnii) is one important fungal infection.', 'role': 'assistant'}]