The body uses glycogen then fats and in the last protein as stored energy. The correct option is a.
The stored food is the reserved food material that body utilize in the case of immediate requirement.
In plants it is the starch that is stored in roots and some storage cell organelles.
The order in which the body uses up stored energy is glycogen, fats and protein.
Thus, the correct option is a.
For more details regarding stored food, visit:
https://brainly.com/question/939721
#SPJ1