Fact 1: Exercise increases a body 's strength.

Fact 2: Exercise can help change that by moving their glucose into their muscles.

Given the two facts above, answer the question "moving what into muscles can increase a body's strength?" with the following options: 
- forces
 - urine
 - glucose
 - Energy.
 - semen
 - movement
 - candy
 - energy


 

   glucose      