This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the following is the mosr common complication of immunosuppression \nSelect and explain. \nA. Malignancy, B. Graft rejection, C. Thrombocytopenia, D. Infection', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]