Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function so i would say that it is A but i could be wrong so good luck
The answers that applly are
1. Kidneys Filter waste from Blood ( so the waste can be thrown out through urine)
2. Kidnesys reabsorb nutrients from the blood ( During the process of creating urine, so our body doesnt throw out important nutrients for our body)
3. Oxygenate blood ( kidney helps produce blood cells that could deliver oxygen)
Thats all.
Can u show a pic of the question
