I think it would be kidneys because of the way the question is worded, kidneys are the only things you have 2 of that also is involved in the digestion of foods.
WHY SHOULD WE EAT MORE VEGETABLES?
What is 'clean eating'?
Are artificial sweeteners better than sugar?
Answer:C. Ella tendrá que cumplir los requisitos de una organización no gubernamental
organización
Depending on what your answer options are, it is either perspiration (sweat) or sweat glands.