Fact 1: Arefrigerator is used for keeping food fresh for a long period of time.

Fact 2: Refrigerators are major users of electricity.

Given the two facts above, answer the question "Keeping food fresh is a major user of what?" with the following options: 
- kinetic energy
 - coal
 - eating dinner
 - hydration
 - heat energy
 - growing vegetables
 - electricity
 - Energy


 

       electricity  