57. A middle aged woman was referred to renal clinic for evaluation of her renal disorder. She hadintermittent pre-tibial swelling for almost 3 months. She has mild hypertension, but no diabetes. Neitherviral hepatitis B nor C history. Laboratory tests were: albumin 3.1 g/dL, creatinine 1.7 mg/dL, Bothserum complement levels (C3 and C4) are low, with a particularly depressed C4 compared with C3.Which of the following should be considered ?
(A) Cryoglobulinemia。
(B) Post-streptococcal glomerulonephritis。
(C) Membranoproliferative glomerulonephritis。
(D) Lupus nephritis, stage III or V。
(E) Infectious endocarditis or shunt nephritis。