An example of energy is food since it can be stored and used later. a. kinetic b. potential c. chemical d. b and c

The correct answer is C. Even though the potential energy can be stored, but it is connected with coordinate system.

D. B and C

Energy stored in food is purely chemical energy, but since it can also be stored for later use, it can also be termed potential.

So the best answer is option D. 

An atom that has fewer electrons that protons is called a positive ion.