5. A 20 y/o patient with HIV and recent pregnancy loss presents with HTN, proteinuria, and red cell casts. Serum complement levels are low. Histology in the images below show hypercellular glomeruli, and the EM shows podocyte effacement with electron dense subepithelial deposits. IF shows granular deposits of IgG, IgM, and C3 in the mesangium and basement membrane. Based on the findings correlated with the patient’s history, the best diagnosis is: