Maximum endocapillary proliferation is a feature of-

First, know about different terms related to glomerulonephritis - Focal glomerulonephritis → When less than 50% of glomeruli are involved. Diffuse glomerulonehritis →when more than 50% of glomeruli are involved. Segmental glomerulonehritis →When a portion of glomerular tuft is involved. Global glomerulonephritis →When most of the part of glomerular tuft is involved. Proliferative glomerulonephritis → Characterized by increased cellularity of glomeruli. It may be- (i)   Endocapillary proliferation → when cells in the capillary tufts proliferate. ii) Extracapillary proliferation → when cellular proliferation extends into Bowman's capsule. Coming to the question Poststreptococcal glomerulonephiphritis is acute proliferative glomerulonephritis characterized by diffuse proliferation of glomerular cells, associated with an influx of leukocytes.