Question

the blood passes through capillaries of the glomerulus of a ______. a medulla b renal vein c nephron

Explanation:

The nephron is the functional unit of the kidney. The glomerulus is a part of the nephron. Blood passes through the capillaries of the glomerulus as part of the filtration process in the nephron. The medulla is a region of the kidney, not the structure where the glomerulus is part of in this context. The renal vein is a blood vessel that drains blood from the kidney, not related to the glomerulus in this way.

Answer:

C. nephron