This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
[{'content': 'A 60 year old woman presents with generalized edema, Skin Ulceration and hypeension. Urine examination shows subnephrotic proteinuria (<2gm) and microscopic haematuria. serum complement levels are decreased and she is positive for anti-hepatitis c antibodies. The likely diagnosis is - \nSelect and explain. \nA. PSGN, B. Essential mixed cryoglobulinemia, C. Membrano proliferative glomerulonephritis, D. Focal segmental glomerulosclerosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Acute post streptococcal glomerulonephritis is an immunologic response of the kidney to infection, characterized by the sudden appearance of edema, hematuria, proteinuria and hypeension . It is essentially a disease of childhood that accounts for approximately 90% of renal disorders in children. Ref Harrison20th edition pg 278', 'role': 'assistant'}]