stored for later use converted into waste transported by the bloodstream digested into simpler substances
I gave my students this multiple choice question: All animals need food to survive. Immediately after an animal eats food, the food is

Only one answer is correct among these 4 choices:
- stored for later use
- converted into waste
- transported by the bloodstream
- digested into simpler substances

Could you tell me which one is correct?

digested into simpler substances