15. 44歲女性,因下肢水腫、蛋白尿(+++)來診,血清學檢查: [Albumin] 3.0 g/dL, [Creatinine] 1.5 mg/dL, low C3 level。最可能的診斷為:
(A) IgA Nephropathy
(B) idiopathic membranoproliferative glomerulonephritis
(C) minimal change disease
(D) focal segmental glomerulosclerosis
(E) Wegener's granulomatosis