A 60-year-old woman presents with generalized edema, skin ulceration and hypertension. 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 -
PSGN Essential mixed cryoglobulinemia Membrano proliferative glomerulonephritis Focal segmental glomerulosclerosis