Answer:
(A). Kidneys.
Step-by-step explanation:
Organs that function in formation of urine after the breakdown of food is Kidneys and help in acid-base balance, removal of toxins, and fluid osmolarity balance.
Nephrons are known as structural and functional units of kidney that produce urine. Blood is filtered by nephrons, which collects waste materials, such as ions and uric acid and excess amount of water to make urine.
Thus, the correct answer is option (A).