Consider the following events in urine production: a.  secre…

Consider the following events in urine production: a.  secretion of toxins in distal convoluted tubule b.  reabsorption of water in nephron loop  c.  filtration of plasma in the renal corpuscle d.  reabsorption of water in the collecting duct e.  reabsorption of glucose in proximal convoluted tubule   Of these events, which occurs 1st?