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

Fact 2: Kitchen appliances include refrigerator.

Given the two facts above, answer the question "What is used for keeping food fresh for a long period of time?" with the following options: 
- Gardens
 - an electric stove
 - A kitchen appliance
 - Fuel cells
 - Plates
 - Air freshener
 - Electric generators
 - electricity


 

   A kitchen appliance      