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: Surgery
[{'content': 'Commonest malignancy in renal transplant recipient is \nSelect and explain. \nA. Skin cancer, B. Renal cell carcinoma, C. Non hodgkins lymphoma, D. Hodgkins lymphoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Cancers seen in renal transplant recipients in decreasing order are:\n\nSkin cancer > Lymphoma > Kaposi's Sarcoma > Ca Cervix > Renal tumors > Ca Vulva & perineum.", 'role': 'assistant'}]