What illustrates the route of urea from the place where it is made to the place where it is excreted?
- Akidney → renal artery → heart → lungs → heart → renal vein → bladder
- Bkidney → renal vein → heart → lungs → heart → renal artery → bladder
- Cliver → hepatic artery → heart → lungs → heart → renal artery → kidney
- Dliver → hepatic vein → heart → lungs → heart → renal artery → kidney