A) A-Collection of urine, B-Secretion C-Reabsorption, D-Pressure filtration
B) A-Pressure filtration, B-Reabsorption C-Secretion, D-Collection of urine
C) A-Pressure filtration, B-Secretion C-Reabsorption, D-Collection of urine
D) A-Reabsorption, B-Secretion C-Pressure filtration, D-Collection of urine